Home / 86,380.59-129,587.22-33,786.75

Finding the Fourth Proportional to 86,380.59, 129,587.22 and 33,786.75

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Solution

The fourth proportional to 86,380.59, 129,587.22 and 33,786.75 is: 50,686.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,380.59 : 129,587.22 = 33,786.75 : x
  2. Step 2: Convert to fraction form
    86,380.59/129,587.22 = 33,786.75/x
  3. Step 3: Cross multiply
    86,380.59x = 129,587.22 × 33,786.75
  4. Step 4: Simplify right side
    86,380.59x = 4,378,331,005.34
  5. Step 5: Solve for x
    x = 4,378,331,005.34/86,380.59
  6. Step 6: Final answer
    x = 50,686.51

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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.