Home / 67,236.43-100,865.58-19,856.31

Finding the Fourth Proportional to 67,236.43, 100,865.58 and 19,856.31

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Solution

The fourth proportional to 67,236.43, 100,865.58 and 19,856.31 is: 29,787.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,236.43 : 100,865.58 = 19,856.31 : x
  2. Step 2: Convert to fraction form
    67,236.43/100,865.58 = 19,856.31/x
  3. Step 3: Cross multiply
    67,236.43x = 100,865.58 × 19,856.31
  4. Step 4: Simplify right side
    67,236.43x = 2,002,817,720.48
  5. Step 5: Solve for x
    x = 2,002,817,720.48/67,236.43
  6. Step 6: Final answer
    x = 29,787.69

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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.