Home / 49,107.20-73,660.79-12,171.20

Finding the Fourth Proportional to 49,107.20, 73,660.79 and 12,171.20

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Solution

The fourth proportional to 49,107.20, 73,660.79 and 12,171.20 is: 18,256.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,107.20 : 73,660.79 = 12,171.20 : x
  2. Step 2: Convert to fraction form
    49,107.20/73,660.79 = 12,171.20/x
  3. Step 3: Cross multiply
    49,107.20x = 73,660.79 × 12,171.20
  4. Step 4: Simplify right side
    49,107.20x = 896,539,778.09
  5. Step 5: Solve for x
    x = 896,539,778.09/49,107.20
  6. Step 6: Final answer
    x = 18,256.79

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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.