Finding the Fourth Proportional to 87,107.88, 120,201.60 and 48,862.12
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Solution
The fourth proportional to 87,107.88, 120,201.60 and 48,862.12 is: 67,425.65
Step by Step Solution
- Step 1: Write the proportion equation
87,107.88 : 120,201.60 = 48,862.12 : x - Step 2: Convert to fraction form
87,107.88/120,201.60 = 48,862.12/x - Step 3: Cross multiply
87,107.88x = 120,201.60 × 48,862.12 - Step 4: Simplify right side
87,107.88x = 5,873,305,003.39 - Step 5: Solve for x
x = 5,873,305,003.39/87,107.88 - Step 6: Final answer
x = 67,425.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.