Home / 90,031.24-135,046.92-23,471.20

Finding the Fourth Proportional to 90,031.24, 135,046.92 and 23,471.20

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Solution

The fourth proportional to 90,031.24, 135,046.92 and 23,471.20 is: 35,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,031.24 : 135,046.92 = 23,471.20 : x
  2. Step 2: Convert to fraction form
    90,031.24/135,046.92 = 23,471.20/x
  3. Step 3: Cross multiply
    90,031.24x = 135,046.92 × 23,471.20
  4. Step 4: Simplify right side
    90,031.24x = 3,169,713,268.70
  5. Step 5: Solve for x
    x = 3,169,713,268.70/90,031.24
  6. Step 6: Final answer
    x = 35,206.82

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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.