Finding the Fourth Proportional to 71,943.96, 107,874.18 and 22,009.80
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Solution
The fourth proportional to 71,943.96, 107,874.18 and 22,009.80 is: 33,001.92
Step by Step Solution
- Step 1: Write the proportion equation
71,943.96 : 107,874.18 = 22,009.80 : x - Step 2: Convert to fraction form
71,943.96/107,874.18 = 22,009.80/x - Step 3: Cross multiply
71,943.96x = 107,874.18 × 22,009.80 - Step 4: Simplify right side
71,943.96x = 2,374,289,126.96 - Step 5: Solve for x
x = 2,374,289,126.96/71,943.96 - Step 6: Final answer
x = 33,001.92
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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.