Home / 57,917.32-86,857.47-18,465.19

Finding the Fourth Proportional to 57,917.32, 86,857.47 and 18,465.19

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Solution

The fourth proportional to 57,917.32, 86,857.47 and 18,465.19 is: 27,691.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,917.32 : 86,857.47 = 18,465.19 : x
  2. Step 2: Convert to fraction form
    57,917.32/86,857.47 = 18,465.19/x
  3. Step 3: Cross multiply
    57,917.32x = 86,857.47 × 18,465.19
  4. Step 4: Simplify right side
    57,917.32x = 1,603,839,469.33
  5. Step 5: Solve for x
    x = 1,603,839,469.33/57,917.32
  6. Step 6: Final answer
    x = 27,691.88

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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.