Home / 82,391.40-123,537.78-26,207.28

Finding the Fourth Proportional to 82,391.40, 123,537.78 and 26,207.28

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Solution

The fourth proportional to 82,391.40, 123,537.78 and 26,207.28 is: 39,295.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,391.40 : 123,537.78 = 26,207.28 : x
  2. Step 2: Convert to fraction form
    82,391.40/123,537.78 = 26,207.28/x
  3. Step 3: Cross multiply
    82,391.40x = 123,537.78 × 26,207.28
  4. Step 4: Simplify right side
    82,391.40x = 3,237,589,191.04
  5. Step 5: Solve for x
    x = 3,237,589,191.04/82,391.40
  6. Step 6: Final answer
    x = 39,295.23

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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.