Finding the Fourth Proportional to 80,542.92, 111,161.36 and 57,956.68
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Solution
The fourth proportional to 80,542.92, 111,161.36 and 57,956.68 is: 79,988.95
Step by Step Solution
- Step 1: Write the proportion equation
80,542.92 : 111,161.36 = 57,956.68 : x - Step 2: Convert to fraction form
80,542.92/111,161.36 = 57,956.68/x - Step 3: Cross multiply
80,542.92x = 111,161.36 × 57,956.68 - Step 4: Simplify right side
80,542.92x = 6,442,543,653.73 - Step 5: Solve for x
x = 6,442,543,653.73/80,542.92 - Step 6: Final answer
x = 79,988.95
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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.