Finding the Fourth Proportional to 80,805.97, 121,134.12 and 41,275.90
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Solution
The fourth proportional to 80,805.97, 121,134.12 and 41,275.90 is: 61,875.62
Step by Step Solution
- Step 1: Write the proportion equation
80,805.97 : 121,134.12 = 41,275.90 : x - Step 2: Convert to fraction form
80,805.97/121,134.12 = 41,275.90/x - Step 3: Cross multiply
80,805.97x = 121,134.12 × 41,275.90 - Step 4: Simplify right side
80,805.97x = 4,999,919,823.71 - Step 5: Solve for x
x = 4,999,919,823.71/80,805.97 - Step 6: Final answer
x = 61,875.62
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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.