Home / 87,360.45-120,519.48-55,512.27

Finding the Fourth Proportional to 87,360.45, 120,519.48 and 55,512.27

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Solution

The fourth proportional to 87,360.45, 120,519.48 and 55,512.27 is: 76,582.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,360.45 : 120,519.48 = 55,512.27 : x
  2. Step 2: Convert to fraction form
    87,360.45/120,519.48 = 55,512.27/x
  3. Step 3: Cross multiply
    87,360.45x = 120,519.48 × 55,512.27
  4. Step 4: Simplify right side
    87,360.45x = 6,690,309,914.02
  5. Step 5: Solve for x
    x = 6,690,309,914.02/87,360.45
  6. Step 6: Final answer
    x = 76,582.82

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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.