Home / 87,846.26-131,782-28,667.30

Finding the Fourth Proportional to 87,846.26, 131,782 and 28,667.30

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Solution

The fourth proportional to 87,846.26, 131,782 and 28,667.30 is: 43,005.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,846.26 : 131,782 = 28,667.30 : x
  2. Step 2: Convert to fraction form
    87,846.26/131,782 = 28,667.30/x
  3. Step 3: Cross multiply
    87,846.26x = 131,782 × 28,667.30
  4. Step 4: Simplify right side
    87,846.26x = 3,777,834,128.60
  5. Step 5: Solve for x
    x = 3,777,834,128.60/87,846.26
  6. Step 6: Final answer
    x = 43,005.07

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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.