Finding the Fourth Proportional to 86,357.38, 129,540.69 and 27,197.66
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Solution
The fourth proportional to 86,357.38, 129,540.69 and 27,197.66 is: 40,797.95
Step by Step Solution
- Step 1: Write the proportion equation
86,357.38 : 129,540.69 = 27,197.66 : x - Step 2: Convert to fraction form
86,357.38/129,540.69 = 27,197.66/x - Step 3: Cross multiply
86,357.38x = 129,540.69 × 27,197.66 - Step 4: Simplify right side
86,357.38x = 3,523,203,642.79 - Step 5: Solve for x
x = 3,523,203,642.79/86,357.38 - Step 6: Final answer
x = 40,797.95
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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.