Home / 87,321.08-130,954.08-28,144.10

Finding the Fourth Proportional to 87,321.08, 130,954.08 and 28,144.10

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Solution

The fourth proportional to 87,321.08, 130,954.08 and 28,144.10 is: 42,207.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,321.08 : 130,954.08 = 28,144.10 : x
  2. Step 2: Convert to fraction form
    87,321.08/130,954.08 = 28,144.10/x
  3. Step 3: Cross multiply
    87,321.08x = 130,954.08 × 28,144.10
  4. Step 4: Simplify right side
    87,321.08x = 3,685,584,722.93
  5. Step 5: Solve for x
    x = 3,685,584,722.93/87,321.08
  6. Step 6: Final answer
    x = 42,207.27

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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.