Finding the Fourth Proportional to 87,883.65, 121,276.85 and 49,644.99
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Solution
The fourth proportional to 87,883.65, 121,276.85 and 49,644.99 is: 68,508.62
Step by Step Solution
- Step 1: Write the proportion equation
87,883.65 : 121,276.85 = 49,644.99 : x - Step 2: Convert to fraction form
87,883.65/121,276.85 = 49,644.99/x - Step 3: Cross multiply
87,883.65x = 121,276.85 × 49,644.99 - Step 4: Simplify right side
87,883.65x = 6,020,787,757.26 - Step 5: Solve for x
x = 6,020,787,757.26/87,883.65 - Step 6: Final answer
x = 68,508.62
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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.