Finding the Fourth Proportional to 81,251.88, 121,897.71 and 27,944.70
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Solution
The fourth proportional to 81,251.88, 121,897.71 and 27,944.70 is: 41,923.89
Step by Step Solution
- Step 1: Write the proportion equation
81,251.88 : 121,897.71 = 27,944.70 : x - Step 2: Convert to fraction form
81,251.88/121,897.71 = 27,944.70/x - Step 3: Cross multiply
81,251.88x = 121,897.71 × 27,944.70 - Step 4: Simplify right side
81,251.88x = 3,406,394,936.64 - Step 5: Solve for x
x = 3,406,394,936.64/81,251.88 - Step 6: Final answer
x = 41,923.89
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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.