Finding the Fourth Proportional to 87,841.97, 121,221.89 and 47,555.70
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Solution
The fourth proportional to 87,841.97, 121,221.89 and 47,555.70 is: 65,626.85
Step by Step Solution
- Step 1: Write the proportion equation
87,841.97 : 121,221.89 = 47,555.70 : x - Step 2: Convert to fraction form
87,841.97/121,221.89 = 47,555.70/x - Step 3: Cross multiply
87,841.97x = 121,221.89 × 47,555.70 - Step 4: Simplify right side
87,841.97x = 5,764,791,596.49 - Step 5: Solve for x
x = 5,764,791,596.49/87,841.97 - Step 6: Final answer
x = 65,626.85
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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.