Finding the Fourth Proportional to 91,140.52, 136,717.26 and 27,952.44
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Solution
The fourth proportional to 91,140.52, 136,717.26 and 27,952.44 is: 41,930.65
Step by Step Solution
- Step 1: Write the proportion equation
91,140.52 : 136,717.26 = 27,952.44 : x - Step 2: Convert to fraction form
91,140.52/136,717.26 = 27,952.44/x - Step 3: Cross multiply
91,140.52x = 136,717.26 × 27,952.44 - Step 4: Simplify right side
91,140.52x = 3,821,581,007.11 - Step 5: Solve for x
x = 3,821,581,007.11/91,140.52 - Step 6: Final answer
x = 41,930.65
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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.