Finding the Fourth Proportional to 72,658.14, 108,947.69 and 22,716.70
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Solution
The fourth proportional to 72,658.14, 108,947.69 and 22,716.70 is: 34,062.69
Step by Step Solution
- Step 1: Write the proportion equation
72,658.14 : 108,947.69 = 22,716.70 : x - Step 2: Convert to fraction form
72,658.14/108,947.69 = 22,716.70/x - Step 3: Cross multiply
72,658.14x = 108,947.69 × 22,716.70 - Step 4: Simplify right side
72,658.14x = 2,474,931,989.42 - Step 5: Solve for x
x = 2,474,931,989.42/72,658.14 - Step 6: Final answer
x = 34,062.69
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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.