Finding the Fourth Proportional to 71,589.20, 107,418.12 and 29,499.92
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Solution
The fourth proportional to 71,589.20, 107,418.12 and 29,499.92 is: 44,264.02
Step by Step Solution
- Step 1: Write the proportion equation
71,589.20 : 107,418.12 = 29,499.92 : x - Step 2: Convert to fraction form
71,589.20/107,418.12 = 29,499.92/x - Step 3: Cross multiply
71,589.20x = 107,418.12 × 29,499.92 - Step 4: Simplify right side
71,589.20x = 3,168,825,946.55 - Step 5: Solve for x
x = 3,168,825,946.55/71,589.20 - Step 6: Final answer
x = 44,264.02
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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.