Home / 90,195.10-124,469.38-49,910.56

Finding the Fourth Proportional to 90,195.10, 124,469.38 and 49,910.56

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Solution

The fourth proportional to 90,195.10, 124,469.38 and 49,910.56 is: 68,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,195.10 : 124,469.38 = 49,910.56 : x
  2. Step 2: Convert to fraction form
    90,195.10/124,469.38 = 49,910.56/x
  3. Step 3: Cross multiply
    90,195.10x = 124,469.38 × 49,910.56
  4. Step 4: Simplify right side
    90,195.10x = 6,212,336,458.65
  5. Step 5: Solve for x
    x = 6,212,336,458.65/90,195.10
  6. Step 6: Final answer
    x = 68,876.65

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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.