Home / 67,261.92-100,869.18-19,864.29

Finding the Fourth Proportional to 67,261.92, 100,869.18 and 19,864.29

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Solution

The fourth proportional to 67,261.92, 100,869.18 and 19,864.29 is: 29,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,261.92 : 100,869.18 = 19,864.29 : x
  2. Step 2: Convert to fraction form
    67,261.92/100,869.18 = 19,864.29/x
  3. Step 3: Cross multiply
    67,261.92x = 100,869.18 × 19,864.29
  4. Step 4: Simplify right side
    67,261.92x = 2,003,694,643.58
  5. Step 5: Solve for x
    x = 2,003,694,643.58/67,261.92
  6. Step 6: Final answer
    x = 29,789.44

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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.