Home / 86,107.77-129,221.24-33,517.53

Finding the Fourth Proportional to 86,107.77, 129,221.24 and 33,517.53

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Solution

The fourth proportional to 86,107.77, 129,221.24 and 33,517.53 is: 50,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,107.77 : 129,221.24 = 33,517.53 : x
  2. Step 2: Convert to fraction form
    86,107.77/129,221.24 = 33,517.53/x
  3. Step 3: Cross multiply
    86,107.77x = 129,221.24 × 33,517.53
  4. Step 4: Simplify right side
    86,107.77x = 4,331,176,620.75
  5. Step 5: Solve for x
    x = 4,331,176,620.75/86,107.77
  6. Step 6: Final answer
    x = 50,299.49

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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.