Home / 86,616.39-129,928.25-27,450.75

Finding the Fourth Proportional to 86,616.39, 129,928.25 and 27,450.75

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Solution

The fourth proportional to 86,616.39, 129,928.25 and 27,450.75 is: 41,177.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,616.39 : 129,928.25 = 27,450.75 : x
  2. Step 2: Convert to fraction form
    86,616.39/129,928.25 = 27,450.75/x
  3. Step 3: Cross multiply
    86,616.39x = 129,928.25 × 27,450.75
  4. Step 4: Simplify right side
    86,616.39x = 3,566,627,908.69
  5. Step 5: Solve for x
    x = 3,566,627,908.69/86,616.39
  6. Step 6: Final answer
    x = 41,177.29

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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.