Finding the Fourth Proportional to 83,438.19, 125,164.97 and 27,278.60
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Solution
The fourth proportional to 83,438.19, 125,164.97 and 27,278.60 is: 40,920.41
Step by Step Solution
- Step 1: Write the proportion equation
83,438.19 : 125,164.97 = 27,278.60 : x - Step 2: Convert to fraction form
83,438.19/125,164.97 = 27,278.60/x - Step 3: Cross multiply
83,438.19x = 125,164.97 × 27,278.60 - Step 4: Simplify right side
83,438.19x = 3,414,324,644.16 - Step 5: Solve for x
x = 3,414,324,644.16/83,438.19 - Step 6: Final answer
x = 40,920.41
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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.