Home / 90,949.56-125,505.41-50,105.68

Finding the Fourth Proportional to 90,949.56, 125,505.41 and 50,105.68

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Solution

The fourth proportional to 90,949.56, 125,505.41 and 50,105.68 is: 69,143.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,949.56 : 125,505.41 = 50,105.68 : x
  2. Step 2: Convert to fraction form
    90,949.56/125,505.41 = 50,105.68/x
  3. Step 3: Cross multiply
    90,949.56x = 125,505.41 × 50,105.68
  4. Step 4: Simplify right side
    90,949.56x = 6,288,533,911.73
  5. Step 5: Solve for x
    x = 6,288,533,911.73/90,949.56
  6. Step 6: Final answer
    x = 69,143.09

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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.