Home / 67,112.57-100,663.09-31,565.54

Finding the Fourth Proportional to 67,112.57, 100,663.09 and 31,565.54

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Solution

The fourth proportional to 67,112.57, 100,663.09 and 31,565.54 is: 47,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,112.57 : 100,663.09 = 31,565.54 : x
  2. Step 2: Convert to fraction form
    67,112.57/100,663.09 = 31,565.54/x
  3. Step 3: Cross multiply
    67,112.57x = 100,663.09 × 31,565.54
  4. Step 4: Simplify right side
    67,112.57x = 3,177,484,793.92
  5. Step 5: Solve for x
    x = 3,177,484,793.92/67,112.57
  6. Step 6: Final answer
    x = 47,345.60

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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.