Home / 87,995.68-121,380.27-52,161.70

Finding the Fourth Proportional to 87,995.68, 121,380.27 and 52,161.70

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Solution

The fourth proportional to 87,995.68, 121,380.27 and 52,161.70 is: 71,951.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,995.68 : 121,380.27 = 52,161.70 : x
  2. Step 2: Convert to fraction form
    87,995.68/121,380.27 = 52,161.70/x
  3. Step 3: Cross multiply
    87,995.68x = 121,380.27 × 52,161.70
  4. Step 4: Simplify right side
    87,995.68x = 6,331,401,229.66
  5. Step 5: Solve for x
    x = 6,331,401,229.66/87,995.68
  6. Step 6: Final answer
    x = 71,951.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.