Finding the Fourth Proportional to 81,470.68, 122,206.12 and 22,306.86
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Solution
The fourth proportional to 81,470.68, 122,206.12 and 22,306.86 is: 33,460.32
Step by Step Solution
- Step 1: Write the proportion equation
81,470.68 : 122,206.12 = 22,306.86 : x - Step 2: Convert to fraction form
81,470.68/122,206.12 = 22,306.86/x - Step 3: Cross multiply
81,470.68x = 122,206.12 × 22,306.86 - Step 4: Simplify right side
81,470.68x = 2,726,034,754.22 - Step 5: Solve for x
x = 2,726,034,754.22/81,470.68 - Step 6: Final answer
x = 33,460.32
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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.