Finding the Fourth Proportional to 80,886.24, 121,249.68 and 38,717.76
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Solution
The fourth proportional to 80,886.24, 121,249.68 and 38,717.76 is: 58,038.50
Step by Step Solution
- Step 1: Write the proportion equation
80,886.24 : 121,249.68 = 38,717.76 : x - Step 2: Convert to fraction form
80,886.24/121,249.68 = 38,717.76/x - Step 3: Cross multiply
80,886.24x = 121,249.68 × 38,717.76 - Step 4: Simplify right side
80,886.24x = 4,694,516,010.32 - Step 5: Solve for x
x = 4,694,516,010.32/80,886.24 - Step 6: Final answer
x = 58,038.50
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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.