Finding the Fourth Proportional to 86,187.68, 129,281.53 and 27,028.52
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Solution
The fourth proportional to 86,187.68, 129,281.53 and 27,028.52 is: 40,542.78
Step by Step Solution
- Step 1: Write the proportion equation
86,187.68 : 129,281.53 = 27,028.52 : x - Step 2: Convert to fraction form
86,187.68/129,281.53 = 27,028.52/x - Step 3: Cross multiply
86,187.68x = 129,281.53 × 27,028.52 - Step 4: Simplify right side
86,187.68x = 3,494,288,419.24 - Step 5: Solve for x
x = 3,494,288,419.24/86,187.68 - Step 6: Final answer
x = 40,542.78
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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.