Home / 57,979.78-86,982.09-17,997.89

Finding the Fourth Proportional to 57,979.78, 86,982.09 and 17,997.89

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Solution

The fourth proportional to 57,979.78, 86,982.09 and 17,997.89 is: 27,000.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,979.78 : 86,982.09 = 17,997.89 : x
  2. Step 2: Convert to fraction form
    57,979.78/86,982.09 = 17,997.89/x
  3. Step 3: Cross multiply
    57,979.78x = 86,982.09 × 17,997.89
  4. Step 4: Simplify right side
    57,979.78x = 1,565,494,042.80
  5. Step 5: Solve for x
    x = 1,565,494,042.80/57,979.78
  6. Step 6: Final answer
    x = 27,000.69

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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.