Finding the Fourth Proportional to 71,816.58, 107,732.36 and 27,480.42
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Solution
The fourth proportional to 71,816.58, 107,732.36 and 27,480.42 is: 41,223.50
Step by Step Solution
- Step 1: Write the proportion equation
71,816.58 : 107,732.36 = 27,480.42 : x - Step 2: Convert to fraction form
71,816.58/107,732.36 = 27,480.42/x - Step 3: Cross multiply
71,816.58x = 107,732.36 × 27,480.42 - Step 4: Simplify right side
71,816.58x = 2,960,530,500.39 - Step 5: Solve for x
x = 2,960,530,500.39/71,816.58 - Step 6: Final answer
x = 41,223.50
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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.