Finding the Fourth Proportional to 71,672.13, 107,507.30 and 43,599.87
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Solution
The fourth proportional to 71,672.13, 107,507.30 and 43,599.87 is: 65,399.26
Step by Step Solution
- Step 1: Write the proportion equation
71,672.13 : 107,507.30 = 43,599.87 : x - Step 2: Convert to fraction form
71,672.13/107,507.30 = 43,599.87/x - Step 3: Cross multiply
71,672.13x = 107,507.30 × 43,599.87 - Step 4: Simplify right side
71,672.13x = 4,687,304,086.05 - Step 5: Solve for x
x = 4,687,304,086.05/71,672.13 - Step 6: Final answer
x = 65,399.26
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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.