Finding the Fourth Proportional to 71,425.35, 107,139.08 and 27,040.19
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Solution
The fourth proportional to 71,425.35, 107,139.08 and 27,040.19 is: 40,560.68
Step by Step Solution
- Step 1: Write the proportion equation
71,425.35 : 107,139.08 = 27,040.19 : x - Step 2: Convert to fraction form
71,425.35/107,139.08 = 27,040.19/x - Step 3: Cross multiply
71,425.35x = 107,139.08 × 27,040.19 - Step 4: Simplify right side
71,425.35x = 2,897,060,611.53 - Step 5: Solve for x
x = 2,897,060,611.53/71,425.35 - Step 6: Final answer
x = 40,560.68
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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.