Finding the Fourth Proportional to 86,023.20, 129,034.74 and 26,863.94
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Solution
The fourth proportional to 86,023.20, 129,034.74 and 26,863.94 is: 40,295.88
Step by Step Solution
- Step 1: Write the proportion equation
86,023.20 : 129,034.74 = 26,863.94 : x - Step 2: Convert to fraction form
86,023.20/129,034.74 = 26,863.94/x - Step 3: Cross multiply
86,023.20x = 129,034.74 × 26,863.94 - Step 4: Simplify right side
86,023.20x = 3,466,380,868.10 - Step 5: Solve for x
x = 3,466,380,868.10/86,023.20 - Step 6: Final answer
x = 40,295.88
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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.