Home / 87,238.45-130,747.91-47,255.90

Finding the Fourth Proportional to 87,238.45, 130,747.91 and 47,255.90

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Solution

The fourth proportional to 87,238.45, 130,747.91 and 47,255.90 is: 70,824.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,238.45 : 130,747.91 = 47,255.90 : x
  2. Step 2: Convert to fraction form
    87,238.45/130,747.91 = 47,255.90/x
  3. Step 3: Cross multiply
    87,238.45x = 130,747.91 × 47,255.90
  4. Step 4: Simplify right side
    87,238.45x = 6,178,610,160.17
  5. Step 5: Solve for x
    x = 6,178,610,160.17/87,238.45
  6. Step 6: Final answer
    x = 70,824.39

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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.