Questions: Recently, More Money 4 U offered an annuity that pays 4.8% compounded monthly. If 982 is deposited into this annuity every month, how much is in the account after 4 years? How much of this is interest?
Type the amount in the account:
(Round to the nearest dollar.)
Transcript text: Recently, More Money 4 U offered an annuity that pays $4.8 \%$ compounded monthly. If $\$ 982$ is deposited into this annuity every month, how much is in the account after 4 years? How much of this is interest?
Type the amount in the account: $\$$ $\square$
(Round to the nearest dollar.)
Solution
Solution Steps
Step 1: Calculate Monthly Interest Rate and Total Months
The annual interest rate is \( 4.8\% \), which can be expressed as a decimal: \( 0.048 \). The monthly interest rate \( r \) is calculated as:
\[
r = \frac{0.048}{12} = 0.004
\]
The total number of months over 4 years is:
\[
n = 4 \times 12 = 48
\]
Step 2: Calculate Future Value of the Annuity
Using the formula for the future value of an annuity:
\[
FV = P \times \frac{(1 + r)^n - 1}{r}
\]
where \( P = 982 \), we find:
\[
FV = 982 \times \frac{(1 + 0.004)^{48} - 1}{0.004} \approx 51851.2108
\]
Rounding this to the nearest dollar gives:
\[
FV \approx 51851
\]
Step 3: Calculate Total Deposits and Interest Earned
The total amount deposited over 4 years is:
\[
\text{Total Deposits} = P \times n = 982 \times 48 = 47136
\]
The interest earned is calculated as:
\[
\text{Interest Earned} = FV - \text{Total Deposits} = 51851.2108 - 47136 \approx 4715.2108
\]
Final Answer
The amount in the account after 4 years is \( \boxed{51851} \) and the interest earned is approximately \( 4715.21 \).