Finding the Fourth Proportional to 91,073.13, 136,625.49 and 27,891.75
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Solution
The fourth proportional to 91,073.13, 136,625.49 and 27,891.75 is: 41,842.46
Step by Step Solution
- Step 1: Write the proportion equation
91,073.13 : 136,625.49 = 27,891.75 : x - Step 2: Convert to fraction form
91,073.13/136,625.49 = 27,891.75/x - Step 3: Cross multiply
91,073.13x = 136,625.49 × 27,891.75 - Step 4: Simplify right side
91,073.13x = 3,810,724,010.71 - Step 5: Solve for x
x = 3,810,724,010.71/91,073.13 - Step 6: Final answer
x = 41,842.46
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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.