Finding the Fourth Proportional to 88,934.30, 122,760.61 and 54,968.84
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Solution
The fourth proportional to 88,934.30, 122,760.61 and 54,968.84 is: 75,876.33
Step by Step Solution
- Step 1: Write the proportion equation
88,934.30 : 122,760.61 = 54,968.84 : x - Step 2: Convert to fraction form
88,934.30/122,760.61 = 54,968.84/x - Step 3: Cross multiply
88,934.30x = 122,760.61 × 54,968.84 - Step 4: Simplify right side
88,934.30x = 6,748,008,329.39 - Step 5: Solve for x
x = 6,748,008,329.39/88,934.30 - Step 6: Final answer
x = 75,876.33
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1.5x scale
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.