Finding the Fourth Proportional to 71,701.14, 107,481.51 and 40,126.62
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Solution
The fourth proportional to 71,701.14, 107,481.51 and 40,126.62 is: 60,150.64
Step by Step Solution
- Step 1: Write the proportion equation
71,701.14 : 107,481.51 = 40,126.62 : x - Step 2: Convert to fraction form
71,701.14/107,481.51 = 40,126.62/x - Step 3: Cross multiply
71,701.14x = 107,481.51 × 40,126.62 - Step 4: Simplify right side
71,701.14x = 4,312,869,708.80 - Step 5: Solve for x
x = 4,312,869,708.80/71,701.14 - Step 6: Final answer
x = 60,150.64
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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.