Finding the Fourth Proportional to 71,553.81, 107,333.63 and 18,247.17
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Solution
The fourth proportional to 71,553.81, 107,333.63 and 18,247.17 is: 27,371.50
Step by Step Solution
- Step 1: Write the proportion equation
71,553.81 : 107,333.63 = 18,247.17 : x - Step 2: Convert to fraction form
71,553.81/107,333.63 = 18,247.17/x - Step 3: Cross multiply
71,553.81x = 107,333.63 × 18,247.17 - Step 4: Simplify right side
71,553.81x = 1,958,534,902.09 - Step 5: Solve for x
x = 1,958,534,902.09/71,553.81 - Step 6: Final answer
x = 27,371.50
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1.5x scale
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.