Home / 67,183.02-100,789.52-20,439.54

Finding the Fourth Proportional to 67,183.02, 100,789.52 and 20,439.54

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Solution

The fourth proportional to 67,183.02, 100,789.52 and 20,439.54 is: 30,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,183.02 : 100,789.52 = 20,439.54 : x
  2. Step 2: Convert to fraction form
    67,183.02/100,789.52 = 20,439.54/x
  3. Step 3: Cross multiply
    67,183.02x = 100,789.52 × 20,439.54
  4. Step 4: Simplify right side
    67,183.02x = 2,060,091,323.42
  5. Step 5: Solve for x
    x = 2,060,091,323.42/67,183.02
  6. Step 6: Final answer
    x = 30,663.87

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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.