Finding the Fourth Proportional to 80,820.24, 121,240.42 and 27,508.13
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Solution
The fourth proportional to 80,820.24, 121,240.42 and 27,508.13 is: 41,265.61
Step by Step Solution
- Step 1: Write the proportion equation
80,820.24 : 121,240.42 = 27,508.13 : x - Step 2: Convert to fraction form
80,820.24/121,240.42 = 27,508.13/x - Step 3: Cross multiply
80,820.24x = 121,240.42 × 27,508.13 - Step 4: Simplify right side
80,820.24x = 3,335,096,508.06 - Step 5: Solve for x
x = 3,335,096,508.06/80,820.24 - Step 6: Final answer
x = 41,265.61
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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.