Finding the Fourth Proportional to 86,170.88, 129,265.58 and 36,256.06
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Solution
The fourth proportional to 86,170.88, 129,265.58 and 36,256.06 is: 54,387.99
Step by Step Solution
- Step 1: Write the proportion equation
86,170.88 : 129,265.58 = 36,256.06 : x - Step 2: Convert to fraction form
86,170.88/129,265.58 = 36,256.06/x - Step 3: Cross multiply
86,170.88x = 129,265.58 × 36,256.06 - Step 4: Simplify right side
86,170.88x = 4,686,660,624.41 - Step 5: Solve for x
x = 4,686,660,624.41/86,170.88 - Step 6: Final answer
x = 54,387.99
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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.