Home / 82,489.32-123,719.40-23,323.68

Finding the Fourth Proportional to 82,489.32, 123,719.40 and 23,323.68

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Solution

The fourth proportional to 82,489.32, 123,719.40 and 23,323.68 is: 34,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,489.32 : 123,719.40 = 23,323.68 : x
  2. Step 2: Convert to fraction form
    82,489.32/123,719.40 = 23,323.68/x
  3. Step 3: Cross multiply
    82,489.32x = 123,719.40 × 23,323.68
  4. Step 4: Simplify right side
    82,489.32x = 2,885,591,695.39
  5. Step 5: Solve for x
    x = 2,885,591,695.39/82,489.32
  6. Step 6: Final answer
    x = 34,981.40

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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.