Finding the Fourth Proportional to 80,821.75, 121,229.79 and 24,659.59
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Solution
The fourth proportional to 80,821.75, 121,229.79 and 24,659.59 is: 36,988.52
Step by Step Solution
- Step 1: Write the proportion equation
80,821.75 : 121,229.79 = 24,659.59 : x - Step 2: Convert to fraction form
80,821.75/121,229.79 = 24,659.59/x - Step 3: Cross multiply
80,821.75x = 121,229.79 × 24,659.59 - Step 4: Simplify right side
80,821.75x = 2,989,476,917.19 - Step 5: Solve for x
x = 2,989,476,917.19/80,821.75 - Step 6: Final answer
x = 36,988.52
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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.