Finding the Fourth Proportional to 81,934.40, 122,901.68 and 22,770.08
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Solution
The fourth proportional to 81,934.40, 122,901.68 and 22,770.08 is: 34,155.14
Step by Step Solution
- Step 1: Write the proportion equation
81,934.40 : 122,901.68 = 22,770.08 : x - Step 2: Convert to fraction form
81,934.40/122,901.68 = 22,770.08/x - Step 3: Cross multiply
81,934.40x = 122,901.68 × 22,770.08 - Step 4: Simplify right side
81,934.40x = 2,798,481,085.73 - Step 5: Solve for x
x = 2,798,481,085.73/81,934.40 - Step 6: Final answer
x = 34,155.14
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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.