Finding the Fourth Proportional to 87,338.28, 131,035.11 and 31,177.18
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Solution
The fourth proportional to 87,338.28, 131,035.11 and 31,177.18 is: 46,775.66
Step by Step Solution
- Step 1: Write the proportion equation
87,338.28 : 131,035.11 = 31,177.18 : x - Step 2: Convert to fraction form
87,338.28/131,035.11 = 31,177.18/x - Step 3: Cross multiply
87,338.28x = 131,035.11 × 31,177.18 - Step 4: Simplify right side
87,338.28x = 4,085,305,257.67 - Step 5: Solve for x
x = 4,085,305,257.67/87,338.28 - Step 6: Final answer
x = 46,775.66
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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.