Finding the Fourth Proportional to 71,503.26, 107,213.18 and 21,568.38
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Solution
The fourth proportional to 71,503.26, 107,213.18 and 21,568.38 is: 32,339.99
Step by Step Solution
- Step 1: Write the proportion equation
71,503.26 : 107,213.18 = 21,568.38 : x - Step 2: Convert to fraction form
71,503.26/107,213.18 = 21,568.38/x - Step 3: Cross multiply
71,503.26x = 107,213.18 × 21,568.38 - Step 4: Simplify right side
71,503.26x = 2,312,414,607.25 - Step 5: Solve for x
x = 2,312,414,607.25/71,503.26 - Step 6: Final answer
x = 32,339.99
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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.