Finding the Fourth Proportional to 86,375.35, 129,555.73 and 27,202.42
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Solution
The fourth proportional to 86,375.35, 129,555.73 and 27,202.42 is: 40,801.33
Step by Step Solution
- Step 1: Write the proportion equation
86,375.35 : 129,555.73 = 27,202.42 : x - Step 2: Convert to fraction form
86,375.35/129,555.73 = 27,202.42/x - Step 3: Cross multiply
86,375.35x = 129,555.73 × 27,202.42 - Step 4: Simplify right side
86,375.35x = 3,524,229,380.87 - Step 5: Solve for x
x = 3,524,229,380.87/86,375.35 - Step 6: Final answer
x = 40,801.33
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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.