Home / 87,084.88-120,178.56-49,358.32

Finding the Fourth Proportional to 87,084.88, 120,178.56 and 49,358.32

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Solution

The fourth proportional to 87,084.88, 120,178.56 and 49,358.32 is: 68,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,084.88 : 120,178.56 = 49,358.32 : x
  2. Step 2: Convert to fraction form
    87,084.88/120,178.56 = 49,358.32/x
  3. Step 3: Cross multiply
    87,084.88x = 120,178.56 × 49,358.32
  4. Step 4: Simplify right side
    87,084.88x = 5,931,811,821.62
  5. Step 5: Solve for x
    x = 5,931,811,821.62/87,084.88
  6. Step 6: Final answer
    x = 68,115.29

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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.