Home / 87,111.11-130,654.33-27,939.09

Finding the Fourth Proportional to 87,111.11, 130,654.33 and 27,939.09

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Solution

The fourth proportional to 87,111.11, 130,654.33 and 27,939.09 is: 41,904.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,111.11 : 130,654.33 = 27,939.09 : x
  2. Step 2: Convert to fraction form
    87,111.11/130,654.33 = 27,939.09/x
  3. Step 3: Cross multiply
    87,111.11x = 130,654.33 × 27,939.09
  4. Step 4: Simplify right side
    87,111.11x = 3,650,363,504.87
  5. Step 5: Solve for x
    x = 3,650,363,504.87/87,111.11
  6. Step 6: Final answer
    x = 41,904.68

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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.