Finding the Fourth Proportional to 71,161.70, 106,742.55 and 44,917.70
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Solution
The fourth proportional to 71,161.70, 106,742.55 and 44,917.70 is: 67,376.55
Step by Step Solution
- Step 1: Write the proportion equation
71,161.70 : 106,742.55 = 44,917.70 : x - Step 2: Convert to fraction form
71,161.70/106,742.55 = 44,917.70/x - Step 3: Cross multiply
71,161.70x = 106,742.55 × 44,917.70 - Step 4: Simplify right side
71,161.70x = 4,794,629,838.14 - Step 5: Solve for x
x = 4,794,629,838.14/71,161.70 - Step 6: Final answer
x = 67,376.55
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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.