Finding the Fourth Proportional to 87,517.24, 120,757.86 and 49,270.84
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Solution
The fourth proportional to 87,517.24, 120,757.86 and 49,270.84 is: 67,984.79
Step by Step Solution
- Step 1: Write the proportion equation
87,517.24 : 120,757.86 = 49,270.84 : x - Step 2: Convert to fraction form
87,517.24/120,757.86 = 49,270.84/x - Step 3: Cross multiply
87,517.24x = 120,757.86 × 49,270.84 - Step 4: Simplify right side
87,517.24x = 5,949,841,198.80 - Step 5: Solve for x
x = 5,949,841,198.80/87,517.24 - Step 6: Final answer
x = 67,984.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.