Home / 82,630.52-123,944.70-20,301.56

Finding the Fourth Proportional to 82,630.52, 123,944.70 and 20,301.56

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Solution

The fourth proportional to 82,630.52, 123,944.70 and 20,301.56 is: 30,452.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,630.52 : 123,944.70 = 20,301.56 : x
  2. Step 2: Convert to fraction form
    82,630.52/123,944.70 = 20,301.56/x
  3. Step 3: Cross multiply
    82,630.52x = 123,944.70 × 20,301.56
  4. Step 4: Simplify right side
    82,630.52x = 2,516,270,763.73
  5. Step 5: Solve for x
    x = 2,516,270,763.73/82,630.52
  6. Step 6: Final answer
    x = 30,452.07

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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.