Home / 86,380.60-129,587.22-33,786.76

Finding the Fourth Proportional to 86,380.60, 129,587.22 and 33,786.76

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Solution

The fourth proportional to 86,380.60, 129,587.22 and 33,786.76 is: 50,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,380.60 : 129,587.22 = 33,786.76 : x
  2. Step 2: Convert to fraction form
    86,380.60/129,587.22 = 33,786.76/x
  3. Step 3: Cross multiply
    86,380.60x = 129,587.22 × 33,786.76
  4. Step 4: Simplify right side
    86,380.60x = 4,378,332,301.21
  5. Step 5: Solve for x
    x = 4,378,332,301.21/86,380.60
  6. Step 6: Final answer
    x = 50,686.52

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1.5x scale

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.