Home / 87,015.81-130,540.05-27,835.59

Finding the Fourth Proportional to 87,015.81, 130,540.05 and 27,835.59

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Solution

The fourth proportional to 87,015.81, 130,540.05 and 27,835.59 is: 41,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,015.81 : 130,540.05 = 27,835.59 : x
  2. Step 2: Convert to fraction form
    87,015.81/130,540.05 = 27,835.59/x
  3. Step 3: Cross multiply
    87,015.81x = 130,540.05 × 27,835.59
  4. Step 4: Simplify right side
    87,015.81x = 3,633,659,310.38
  5. Step 5: Solve for x
    x = 3,633,659,310.38/87,015.81
  6. Step 6: Final answer
    x = 41,758.61

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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.