Finding the Fourth Proportional to 87,738.43, 121,093.92 and 49,508.81
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Solution
The fourth proportional to 87,738.43, 121,093.92 and 49,508.81 is: 68,330.56
Step by Step Solution
- Step 1: Write the proportion equation
87,738.43 : 121,093.92 = 49,508.81 : x - Step 2: Convert to fraction form
87,738.43/121,093.92 = 49,508.81/x - Step 3: Cross multiply
87,738.43x = 121,093.92 × 49,508.81 - Step 4: Simplify right side
87,738.43x = 5,995,215,877.44 - Step 5: Solve for x
x = 5,995,215,877.44/87,738.43 - Step 6: Final answer
x = 68,330.56
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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.