Home / 57,617.28-86,425.92-18,178.38

Finding the Fourth Proportional to 57,617.28, 86,425.92 and 18,178.38

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Solution

The fourth proportional to 57,617.28, 86,425.92 and 18,178.38 is: 27,267.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,617.28 : 86,425.92 = 18,178.38 : x
  2. Step 2: Convert to fraction form
    57,617.28/86,425.92 = 18,178.38/x
  3. Step 3: Cross multiply
    57,617.28x = 86,425.92 × 18,178.38
  4. Step 4: Simplify right side
    57,617.28x = 1,571,083,215.61
  5. Step 5: Solve for x
    x = 1,571,083,215.61/57,617.28
  6. Step 6: Final answer
    x = 27,267.57

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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.