Finding the Fourth Proportional to 71,814.26, 107,728.89 and 27,478.10
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Solution
The fourth proportional to 71,814.26, 107,728.89 and 27,478.10 is: 41,220.02
Step by Step Solution
- Step 1: Write the proportion equation
71,814.26 : 107,728.89 = 27,478.10 : x - Step 2: Convert to fraction form
71,814.26/107,728.89 = 27,478.10/x - Step 3: Cross multiply
71,814.26x = 107,728.89 × 27,478.10 - Step 4: Simplify right side
71,814.26x = 2,960,185,378.59 - Step 5: Solve for x
x = 2,960,185,378.59/71,814.26 - Step 6: Final answer
x = 41,220.02
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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.