Finding the Fourth Proportional to 81,240.57, 121,825.99 and 27,937.92
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Solution
The fourth proportional to 81,240.57, 121,825.99 and 27,937.92 is: 41,894.89
Step by Step Solution
- Step 1: Write the proportion equation
81,240.57 : 121,825.99 = 27,937.92 : x - Step 2: Convert to fraction form
81,240.57/121,825.99 = 27,937.92/x - Step 3: Cross multiply
81,240.57x = 121,825.99 × 27,937.92 - Step 4: Simplify right side
81,240.57x = 3,403,564,762.54 - Step 5: Solve for x
x = 3,403,564,762.54/81,240.57 - Step 6: Final answer
x = 41,894.89
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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.