Finding the Fourth Proportional to 86,617.90, 129,930.50 and 27,452.26
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Solution
The fourth proportional to 86,617.90, 129,930.50 and 27,452.26 is: 41,179.55
Step by Step Solution
- Step 1: Write the proportion equation
86,617.90 : 129,930.50 = 27,452.26 : x - Step 2: Convert to fraction form
86,617.90/129,930.50 = 27,452.26/x - Step 3: Cross multiply
86,617.90x = 129,930.50 × 27,452.26 - Step 4: Simplify right side
86,617.90x = 3,566,885,867.93 - Step 5: Solve for x
x = 3,566,885,867.93/86,617.90 - Step 6: Final answer
x = 41,179.55
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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.