Finding the Fourth Proportional to 71,161.20, 106,741.80 and 44,917.20
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Solution
The fourth proportional to 71,161.20, 106,741.80 and 44,917.20 is: 67,375.80
Step by Step Solution
- Step 1: Write the proportion equation
71,161.20 : 106,741.80 = 44,917.20 : x - Step 2: Convert to fraction form
71,161.20/106,741.80 = 44,917.20/x - Step 3: Cross multiply
71,161.20x = 106,741.80 × 44,917.20 - Step 4: Simplify right side
71,161.20x = 4,794,542,778.96 - Step 5: Solve for x
x = 4,794,542,778.96/71,161.20 - Step 6: Final answer
x = 67,375.80
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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.