Finding the Fourth Proportional to 88,394.74, 121,982.41 and 48,107.65
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Solution
The fourth proportional to 88,394.74, 121,982.41 and 48,107.65 is: 66,387.29
Step by Step Solution
- Step 1: Write the proportion equation
88,394.74 : 121,982.41 = 48,107.65 : x - Step 2: Convert to fraction form
88,394.74/121,982.41 = 48,107.65/x - Step 3: Cross multiply
88,394.74x = 121,982.41 × 48,107.65 - Step 4: Simplify right side
88,394.74x = 5,868,287,086.44 - Step 5: Solve for x
x = 5,868,287,086.44/88,394.74 - Step 6: Final answer
x = 66,387.29
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.