Finding the Fourth Proportional to 71,454.92, 107,171.84 and 18,868.08
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Solution
The fourth proportional to 71,454.92, 107,171.84 and 18,868.08 is: 28,299.34
Step by Step Solution
- Step 1: Write the proportion equation
71,454.92 : 107,171.84 = 18,868.08 : x - Step 2: Convert to fraction form
71,454.92/107,171.84 = 18,868.08/x - Step 3: Cross multiply
71,454.92x = 107,171.84 × 18,868.08 - Step 4: Simplify right side
71,454.92x = 2,022,126,850.87 - Step 5: Solve for x
x = 2,022,126,850.87/71,454.92 - Step 6: Final answer
x = 28,299.34
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1.5x scale
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.