Finding the Fourth Proportional to 87,954.80, 121,371.62 and 56,120.18
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Solution
The fourth proportional to 87,954.80, 121,371.62 and 56,120.18 is: 77,442.02
Step by Step Solution
- Step 1: Write the proportion equation
87,954.80 : 121,371.62 = 56,120.18 : x - Step 2: Convert to fraction form
87,954.80/121,371.62 = 56,120.18/x - Step 3: Cross multiply
87,954.80x = 121,371.62 × 56,120.18 - Step 4: Simplify right side
87,954.80x = 6,811,397,161.29 - Step 5: Solve for x
x = 6,811,397,161.29/87,954.80 - Step 6: Final answer
x = 77,442.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.