Finding the Fourth Proportional to 71,754.12, 107,532.90 and 36,620.10
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Solution
The fourth proportional to 71,754.12, 107,532.90 and 36,620.10 is: 54,879.99
Step by Step Solution
- Step 1: Write the proportion equation
71,754.12 : 107,532.90 = 36,620.10 : x - Step 2: Convert to fraction form
71,754.12/107,532.90 = 36,620.10/x - Step 3: Cross multiply
71,754.12x = 107,532.90 × 36,620.10 - Step 4: Simplify right side
71,754.12x = 3,937,865,551.29 - Step 5: Solve for x
x = 3,937,865,551.29/71,754.12 - Step 6: Final answer
x = 54,879.99
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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.