Home / 57,138.12-85,717.62-17,692.56

Finding the Fourth Proportional to 57,138.12, 85,717.62 and 17,692.56

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Solution

The fourth proportional to 57,138.12, 85,717.62 and 17,692.56 is: 26,542.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,138.12 : 85,717.62 = 17,692.56 : x
  2. Step 2: Convert to fraction form
    57,138.12/85,717.62 = 17,692.56/x
  3. Step 3: Cross multiply
    57,138.12x = 85,717.62 × 17,692.56
  4. Step 4: Simplify right side
    57,138.12x = 1,516,564,134.91
  5. Step 5: Solve for x
    x = 1,516,564,134.91/57,138.12
  6. Step 6: Final answer
    x = 26,542.07

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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.