Home / 87,067.40-120,132.03-55,224.68

Finding the Fourth Proportional to 87,067.40, 120,132.03 and 55,224.68

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Solution

The fourth proportional to 87,067.40, 120,132.03 and 55,224.68 is: 76,196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,067.40 : 120,132.03 = 55,224.68 : x
  2. Step 2: Convert to fraction form
    87,067.40/120,132.03 = 55,224.68/x
  3. Step 3: Cross multiply
    87,067.40x = 120,132.03 × 55,224.68
  4. Step 4: Simplify right side
    87,067.40x = 6,634,252,914.50
  5. Step 5: Solve for x
    x = 6,634,252,914.50/87,067.40
  6. Step 6: Final answer
    x = 76,196.75

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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.