Finding the Fourth Proportional to 80,082.41, 120,138.99 and 26,791.19
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Solution
The fourth proportional to 80,082.41, 120,138.99 and 26,791.19 is: 40,191.92
Step by Step Solution
- Step 1: Write the proportion equation
80,082.41 : 120,138.99 = 26,791.19 : x - Step 2: Convert to fraction form
80,082.41/120,138.99 = 26,791.19/x - Step 3: Cross multiply
80,082.41x = 120,138.99 × 26,791.19 - Step 4: Simplify right side
80,082.41x = 3,218,665,772.85 - Step 5: Solve for x
x = 3,218,665,772.85/80,082.41 - Step 6: Final answer
x = 40,191.92
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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.