Finding the Fourth Proportional to 71,523.36, 107,283.78 and 29,422.80
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Solution
The fourth proportional to 71,523.36, 107,283.78 and 29,422.80 is: 44,133.68
Step by Step Solution
- Step 1: Write the proportion equation
71,523.36 : 107,283.78 = 29,422.80 : x - Step 2: Convert to fraction form
71,523.36/107,283.78 = 29,422.80/x - Step 3: Cross multiply
71,523.36x = 107,283.78 × 29,422.80 - Step 4: Simplify right side
71,523.36x = 3,156,589,202.18 - Step 5: Solve for x
x = 3,156,589,202.18/71,523.36 - Step 6: Final answer
x = 44,133.68
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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.