Home / 82,331.32-123,496.92-20,001.76

Finding the Fourth Proportional to 82,331.32, 123,496.92 and 20,001.76

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Solution

The fourth proportional to 82,331.32, 123,496.92 and 20,001.76 is: 30,002.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,331.32 : 123,496.92 = 20,001.76 : x
  2. Step 2: Convert to fraction form
    82,331.32/123,496.92 = 20,001.76/x
  3. Step 3: Cross multiply
    82,331.32x = 123,496.92 × 20,001.76
  4. Step 4: Simplify right side
    82,331.32x = 2,470,155,754.58
  5. Step 5: Solve for x
    x = 2,470,155,754.58/82,331.32
  6. Step 6: Final answer
    x = 30,002.63

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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.