Finding the Fourth Proportional to 86,160.20, 129,246.44 and 22,979.96
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Solution
The fourth proportional to 86,160.20, 129,246.44 and 22,979.96 is: 34,471.58
Step by Step Solution
- Step 1: Write the proportion equation
86,160.20 : 129,246.44 = 22,979.96 : x - Step 2: Convert to fraction form
86,160.20/129,246.44 = 22,979.96/x - Step 3: Cross multiply
86,160.20x = 129,246.44 × 22,979.96 - Step 4: Simplify right side
86,160.20x = 2,970,077,744.88 - Step 5: Solve for x
x = 2,970,077,744.88/86,160.20 - Step 6: Final answer
x = 34,471.58
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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.