Finding the Fourth Proportional to 87,034.87, 120,107.10 and 48,794.23
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Solution
The fourth proportional to 87,034.87, 120,107.10 and 48,794.23 is: 67,335.47
Step by Step Solution
- Step 1: Write the proportion equation
87,034.87 : 120,107.10 = 48,794.23 : x - Step 2: Convert to fraction form
87,034.87/120,107.10 = 48,794.23/x - Step 3: Cross multiply
87,034.87x = 120,107.10 × 48,794.23 - Step 4: Simplify right side
87,034.87x = 5,860,533,462.03 - Step 5: Solve for x
x = 5,860,533,462.03/87,034.87 - Step 6: Final answer
x = 67,335.47
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1.5x scale
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.