Home / 90,179.56-135,288.78-27,004.69

Finding the Fourth Proportional to 90,179.56, 135,288.78 and 27,004.69

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Solution

The fourth proportional to 90,179.56, 135,288.78 and 27,004.69 is: 40,512.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,179.56 : 135,288.78 = 27,004.69 : x
  2. Step 2: Convert to fraction form
    90,179.56/135,288.78 = 27,004.69/x
  3. Step 3: Cross multiply
    90,179.56x = 135,288.78 × 27,004.69
  4. Step 4: Simplify right side
    90,179.56x = 3,653,431,564.38
  5. Step 5: Solve for x
    x = 3,653,431,564.38/90,179.56
  6. Step 6: Final answer
    x = 40,512.86

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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.