Finding the Fourth Proportional to 71,814.63, 107,729.33 and 27,478.68
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Solution
The fourth proportional to 71,814.63, 107,729.33 and 27,478.68 is: 41,220.84
Step by Step Solution
- Step 1: Write the proportion equation
71,814.63 : 107,729.33 = 27,478.68 : x - Step 2: Convert to fraction form
71,814.63/107,729.33 = 27,478.68/x - Step 3: Cross multiply
71,814.63x = 107,729.33 × 27,478.68 - Step 4: Simplify right side
71,814.63x = 2,960,259,244.31 - Step 5: Solve for x
x = 2,960,259,244.31/71,814.63 - Step 6: Final answer
x = 41,220.84
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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.