Finding the Fourth Proportional to 81,194.69, 121,780.92 and 24,267.80
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Solution
The fourth proportional to 81,194.69, 121,780.92 and 24,267.80 is: 36,398.38
Step by Step Solution
- Step 1: Write the proportion equation
81,194.69 : 121,780.92 = 24,267.80 : x - Step 2: Convert to fraction form
81,194.69/121,780.92 = 24,267.80/x - Step 3: Cross multiply
81,194.69x = 121,780.92 × 24,267.80 - Step 4: Simplify right side
81,194.69x = 2,955,355,010.38 - Step 5: Solve for x
x = 2,955,355,010.38/81,194.69 - Step 6: Final answer
x = 36,398.38
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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.