Finding the Fourth Proportional to 80,689.20, 121,034.68 and 24,538.44
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Solution
The fourth proportional to 80,689.20, 121,034.68 and 24,538.44 is: 36,807.93
Step by Step Solution
- Step 1: Write the proportion equation
80,689.20 : 121,034.68 = 24,538.44 : x - Step 2: Convert to fraction form
80,689.20/121,034.68 = 24,538.44/x - Step 3: Cross multiply
80,689.20x = 121,034.68 × 24,538.44 - Step 4: Simplify right side
80,689.20x = 2,970,002,233.10 - Step 5: Solve for x
x = 2,970,002,233.10/80,689.20 - Step 6: Final answer
x = 36,807.93
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.