Finding the Fourth Proportional to 81,214.11, 121,838.55 and 24,292.48
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Solution
The fourth proportional to 81,214.11, 121,838.55 and 24,292.48 is: 36,443.92
Step by Step Solution
- Step 1: Write the proportion equation
81,214.11 : 121,838.55 = 24,292.48 : x - Step 2: Convert to fraction form
81,214.11/121,838.55 = 24,292.48/x - Step 3: Cross multiply
81,214.11x = 121,838.55 × 24,292.48 - Step 4: Simplify right side
81,214.11x = 2,959,760,539.10 - Step 5: Solve for x
x = 2,959,760,539.10/81,214.11 - Step 6: Final answer
x = 36,443.92
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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.