Home / 68,044.97-102,059.31-18,128.72

Finding the Fourth Proportional to 68,044.97, 102,059.31 and 18,128.72

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Solution

The fourth proportional to 68,044.97, 102,059.31 and 18,128.72 is: 27,190.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,044.97 : 102,059.31 = 18,128.72 : x
  2. Step 2: Convert to fraction form
    68,044.97/102,059.31 = 18,128.72/x
  3. Step 3: Cross multiply
    68,044.97x = 102,059.31 × 18,128.72
  4. Step 4: Simplify right side
    68,044.97x = 1,850,204,654.38
  5. Step 5: Solve for x
    x = 1,850,204,654.38/68,044.97
  6. Step 6: Final answer
    x = 27,190.91

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1.5x scale

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.