Finding the Fourth Proportional to 80,980.76, 121,471.11 and 41,512.70
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Solution
The fourth proportional to 80,980.76, 121,471.11 and 41,512.70 is: 62,269.03
Step by Step Solution
- Step 1: Write the proportion equation
80,980.76 : 121,471.11 = 41,512.70 : x - Step 2: Convert to fraction form
80,980.76/121,471.11 = 41,512.70/x - Step 3: Cross multiply
80,980.76x = 121,471.11 × 41,512.70 - Step 4: Simplify right side
80,980.76x = 5,042,593,748.10 - Step 5: Solve for x
x = 5,042,593,748.10/80,980.76 - Step 6: Final answer
x = 62,269.03
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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.