Finding the Fourth Proportional to 80,821.25, 121,229.04 and 24,659.09
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Solution
The fourth proportional to 80,821.25, 121,229.04 and 24,659.09 is: 36,987.77
Step by Step Solution
- Step 1: Write the proportion equation
80,821.25 : 121,229.04 = 24,659.09 : x - Step 2: Convert to fraction form
80,821.25/121,229.04 = 24,659.09/x - Step 3: Cross multiply
80,821.25x = 121,229.04 × 24,659.09 - Step 4: Simplify right side
80,821.25x = 2,989,397,807.97 - Step 5: Solve for x
x = 2,989,397,807.97/80,821.25 - Step 6: Final answer
x = 36,987.77
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1.5x scale
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.