Home / 86,049.25-129,086.97-43,906.30

Finding the Fourth Proportional to 86,049.25, 129,086.97 and 43,906.30

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Solution

The fourth proportional to 86,049.25, 129,086.97 and 43,906.30 is: 65,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,049.25 : 129,086.97 = 43,906.30 : x
  2. Step 2: Convert to fraction form
    86,049.25/129,086.97 = 43,906.30/x
  3. Step 3: Cross multiply
    86,049.25x = 129,086.97 × 43,906.30
  4. Step 4: Simplify right side
    86,049.25x = 5,667,730,585.48
  5. Step 5: Solve for x
    x = 5,667,730,585.48/86,049.25
  6. Step 6: Final answer
    x = 65,866.13

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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.