Home / 67,178.24-100,778.83-27,713.78

Finding the Fourth Proportional to 67,178.24, 100,778.83 and 27,713.78

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Solution

The fourth proportional to 67,178.24, 100,778.83 and 27,713.78 is: 41,575.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,178.24 : 100,778.83 = 27,713.78 : x
  2. Step 2: Convert to fraction form
    67,178.24/100,778.83 = 27,713.78/x
  3. Step 3: Cross multiply
    67,178.24x = 100,778.83 × 27,713.78
  4. Step 4: Simplify right side
    67,178.24x = 2,792,961,750.10
  5. Step 5: Solve for x
    x = 2,792,961,750.10/67,178.24
  6. Step 6: Final answer
    x = 41,575.40

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1.5x scale

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.