Finding the Fourth Proportional to 87,425.14, 131,105.58 and 31,250.09
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Solution
The fourth proportional to 87,425.14, 131,105.58 and 31,250.09 is: 46,863.65
Step by Step Solution
- Step 1: Write the proportion equation
87,425.14 : 131,105.58 = 31,250.09 : x - Step 2: Convert to fraction form
87,425.14/131,105.58 = 31,250.09/x - Step 3: Cross multiply
87,425.14x = 131,105.58 × 31,250.09 - Step 4: Simplify right side
87,425.14x = 4,097,060,729.55 - Step 5: Solve for x
x = 4,097,060,729.55/87,425.14 - Step 6: Final answer
x = 46,863.65
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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.