Home / 57,568.20-86,364.45-18,129.30

Finding the Fourth Proportional to 57,568.20, 86,364.45 and 18,129.30

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Solution

The fourth proportional to 57,568.20, 86,364.45 and 18,129.30 is: 27,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,568.20 : 86,364.45 = 18,129.30 : x
  2. Step 2: Convert to fraction form
    57,568.20/86,364.45 = 18,129.30/x
  3. Step 3: Cross multiply
    57,568.20x = 86,364.45 × 18,129.30
  4. Step 4: Simplify right side
    57,568.20x = 1,565,727,023.39
  5. Step 5: Solve for x
    x = 1,565,727,023.39/57,568.20
  6. Step 6: Final answer
    x = 27,197.78

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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.