Home / 82,558.72-123,815.04-25,638.04

Finding the Fourth Proportional to 82,558.72, 123,815.04 and 25,638.04

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Solution

The fourth proportional to 82,558.72, 123,815.04 and 25,638.04 is: 38,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,558.72 : 123,815.04 = 25,638.04 : x
  2. Step 2: Convert to fraction form
    82,558.72/123,815.04 = 25,638.04/x
  3. Step 3: Cross multiply
    82,558.72x = 123,815.04 × 25,638.04
  4. Step 4: Simplify right side
    82,558.72x = 3,174,374,948.12
  5. Step 5: Solve for x
    x = 3,174,374,948.12/82,558.72
  6. Step 6: Final answer
    x = 38,449.91

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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.