Home / 87,213.45-130,863.39-34,621.77

Finding the Fourth Proportional to 87,213.45, 130,863.39 and 34,621.77

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Solution

The fourth proportional to 87,213.45, 130,863.39 and 34,621.77 is: 51,949.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,213.45 : 130,863.39 = 34,621.77 : x
  2. Step 2: Convert to fraction form
    87,213.45/130,863.39 = 34,621.77/x
  3. Step 3: Cross multiply
    87,213.45x = 130,863.39 × 34,621.77
  4. Step 4: Simplify right side
    87,213.45x = 4,530,722,190.00
  5. Step 5: Solve for x
    x = 4,530,722,190.00/87,213.45
  6. Step 6: Final answer
    x = 51,949.81

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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.