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Finding the Fourth Proportional to 82,251.92, 123,377.56 and 19,922.32

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Solution

The fourth proportional to 82,251.92, 123,377.56 and 19,922.32 is: 29,883.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,251.92 : 123,377.56 = 19,922.32 : x
  2. Step 2: Convert to fraction form
    82,251.92/123,377.56 = 19,922.32/x
  3. Step 3: Cross multiply
    82,251.92x = 123,377.56 × 19,922.32
  4. Step 4: Simplify right side
    82,251.92x = 2,457,967,231.14
  5. Step 5: Solve for x
    x = 2,457,967,231.14/82,251.92
  6. Step 6: Final answer
    x = 29,883.40

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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.