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Finding the Fourth Proportional to 87,604.40, 120,906.60 and 49,882.16

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Solution

The fourth proportional to 87,604.40, 120,906.60 and 49,882.16 is: 68,844.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,604.40 : 120,906.60 = 49,882.16 : x
  2. Step 2: Convert to fraction form
    87,604.40/120,906.60 = 49,882.16/x
  3. Step 3: Cross multiply
    87,604.40x = 120,906.60 × 49,882.16
  4. Step 4: Simplify right side
    87,604.40x = 6,031,082,366.26
  5. Step 5: Solve for x
    x = 6,031,082,366.26/87,604.40
  6. Step 6: Final answer
    x = 68,844.51

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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.