Home / 82,456.64-123,694.68-26,277.20

Finding the Fourth Proportional to 82,456.64, 123,694.68 and 26,277.20

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Solution

The fourth proportional to 82,456.64, 123,694.68 and 26,277.20 is: 39,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,456.64 : 123,694.68 = 26,277.20 : x
  2. Step 2: Convert to fraction form
    82,456.64/123,694.68 = 26,277.20/x
  3. Step 3: Cross multiply
    82,456.64x = 123,694.68 × 26,277.20
  4. Step 4: Simplify right side
    82,456.64x = 3,250,349,845.30
  5. Step 5: Solve for x
    x = 3,250,349,845.30/82,456.64
  6. Step 6: Final answer
    x = 39,418.90

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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.