Finding the Fourth Proportional to 83,489.78, 125,253.87 and 27,331.70
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Solution
The fourth proportional to 83,489.78, 125,253.87 and 27,331.70 is: 41,003.84
Step by Step Solution
- Step 1: Write the proportion equation
83,489.78 : 125,253.87 = 27,331.70 : x - Step 2: Convert to fraction form
83,489.78/125,253.87 = 27,331.70/x - Step 3: Cross multiply
83,489.78x = 125,253.87 × 27,331.70 - Step 4: Simplify right side
83,489.78x = 3,423,401,198.68 - Step 5: Solve for x
x = 3,423,401,198.68/83,489.78 - Step 6: Final answer
x = 41,003.84
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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.