Finding the Fourth Proportional to 71,987.40, 107,948.70 and 32,524.20
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Solution
The fourth proportional to 71,987.40, 107,948.70 and 32,524.20 is: 48,771.66
Step by Step Solution
- Step 1: Write the proportion equation
71,987.40 : 107,948.70 = 32,524.20 : x - Step 2: Convert to fraction form
71,987.40/107,948.70 = 32,524.20/x - Step 3: Cross multiply
71,987.40x = 107,948.70 × 32,524.20 - Step 4: Simplify right side
71,987.40x = 3,510,945,108.54 - Step 5: Solve for x
x = 3,510,945,108.54/71,987.40 - Step 6: Final answer
x = 48,771.66
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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.