Finding the Fourth Proportional to 71,375.77, 107,112.11 and 38,119.70
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Solution
The fourth proportional to 71,375.77, 107,112.11 and 38,119.70 is: 57,205.43
Step by Step Solution
- Step 1: Write the proportion equation
71,375.77 : 107,112.11 = 38,119.70 : x - Step 2: Convert to fraction form
71,375.77/107,112.11 = 38,119.70/x - Step 3: Cross multiply
71,375.77x = 107,112.11 × 38,119.70 - Step 4: Simplify right side
71,375.77x = 4,083,081,576.75 - Step 5: Solve for x
x = 4,083,081,576.75/71,375.77 - Step 6: Final answer
x = 57,205.43
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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.