Home / 82,408.45-123,631.31-26,251.75

Finding the Fourth Proportional to 82,408.45, 123,631.31 and 26,251.75

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Solution

The fourth proportional to 82,408.45, 123,631.31 and 26,251.75 is: 39,383.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,408.45 : 123,631.31 = 26,251.75 : x
  2. Step 2: Convert to fraction form
    82,408.45/123,631.31 = 26,251.75/x
  3. Step 3: Cross multiply
    82,408.45x = 123,631.31 × 26,251.75
  4. Step 4: Simplify right side
    82,408.45x = 3,245,538,810.17
  5. Step 5: Solve for x
    x = 3,245,538,810.17/82,408.45
  6. Step 6: Final answer
    x = 39,383.57

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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.