Finding the Fourth Proportional to 72,520.26, 108,823.53 and 39,239.66
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Solution
The fourth proportional to 72,520.26, 108,823.53 and 39,239.66 is: 58,882.82
Step by Step Solution
- Step 1: Write the proportion equation
72,520.26 : 108,823.53 = 39,239.66 : x - Step 2: Convert to fraction form
72,520.26/108,823.53 = 39,239.66/x - Step 3: Cross multiply
72,520.26x = 108,823.53 × 39,239.66 - Step 4: Simplify right side
72,520.26x = 4,270,197,773.08 - Step 5: Solve for x
x = 4,270,197,773.08/72,520.26 - Step 6: Final answer
x = 58,882.82
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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.