Home / 68,947.78-95,158.20-42,105.86

Finding the Fourth Proportional to 68,947.78, 95,158.20 and 42,105.86

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Solution

The fourth proportional to 68,947.78, 95,158.20 and 42,105.86 is: 58,112.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,947.78 : 95,158.20 = 42,105.86 : x
  2. Step 2: Convert to fraction form
    68,947.78/95,158.20 = 42,105.86/x
  3. Step 3: Cross multiply
    68,947.78x = 95,158.20 × 42,105.86
  4. Step 4: Simplify right side
    68,947.78x = 4,006,717,847.05
  5. Step 5: Solve for x
    x = 4,006,717,847.05/68,947.78
  6. Step 6: Final answer
    x = 58,112.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.