Home / 87,143.76-130,508.28-50,130

Finding the Fourth Proportional to 87,143.76, 130,508.28 and 50,130

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Solution

The fourth proportional to 87,143.76, 130,508.28 and 50,130 is: 75,075.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,143.76 : 130,508.28 = 50,130 : x
  2. Step 2: Convert to fraction form
    87,143.76/130,508.28 = 50,130/x
  3. Step 3: Cross multiply
    87,143.76x = 130,508.28 × 50,130
  4. Step 4: Simplify right side
    87,143.76x = 6,542,380,076.40
  5. Step 5: Solve for x
    x = 6,542,380,076.40/87,143.76
  6. Step 6: Final answer
    x = 75,075.71

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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.