Finding the Fourth Proportional to 80,863.24, 121,217.10 and 41,438.92
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Solution
The fourth proportional to 80,863.24, 121,217.10 and 41,438.92 is: 62,118.53
Step by Step Solution
- Step 1: Write the proportion equation
80,863.24 : 121,217.10 = 41,438.92 : x - Step 2: Convert to fraction form
80,863.24/121,217.10 = 41,438.92/x - Step 3: Cross multiply
80,863.24x = 121,217.10 × 41,438.92 - Step 4: Simplify right side
80,863.24x = 5,023,105,709.53 - Step 5: Solve for x
x = 5,023,105,709.53/80,863.24 - Step 6: Final answer
x = 62,118.53
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1.5x scale
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.