Home / 73,138.31-109,641.78-26,380.25

Finding the Fourth Proportional to 73,138.31, 109,641.78 and 26,380.25

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Solution

The fourth proportional to 73,138.31, 109,641.78 and 26,380.25 is: 39,546.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,138.31 : 109,641.78 = 26,380.25 : x
  2. Step 2: Convert to fraction form
    73,138.31/109,641.78 = 26,380.25/x
  3. Step 3: Cross multiply
    73,138.31x = 109,641.78 × 26,380.25
  4. Step 4: Simplify right side
    73,138.31x = 2,892,377,018.64
  5. Step 5: Solve for x
    x = 2,892,377,018.64/73,138.31
  6. Step 6: Final answer
    x = 39,546.68

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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.