Finding the Fourth Proportional to 71,689.53, 107,515.84 and 29,581.58
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Solution
The fourth proportional to 71,689.53, 107,515.84 and 29,581.58 is: 44,364.75
Step by Step Solution
- Step 1: Write the proportion equation
71,689.53 : 107,515.84 = 29,581.58 : x - Step 2: Convert to fraction form
71,689.53/107,515.84 = 29,581.58/x - Step 3: Cross multiply
71,689.53x = 107,515.84 × 29,581.58 - Step 4: Simplify right side
71,689.53x = 3,180,487,810.69 - Step 5: Solve for x
x = 3,180,487,810.69/71,689.53 - Step 6: Final answer
x = 44,364.75
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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.