Home / 57,856.65-86,781.33-18,442.05

Finding the Fourth Proportional to 57,856.65, 86,781.33 and 18,442.05

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Solution

The fourth proportional to 57,856.65, 86,781.33 and 18,442.05 is: 27,661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,856.65 : 86,781.33 = 18,442.05 : x
  2. Step 2: Convert to fraction form
    57,856.65/86,781.33 = 18,442.05/x
  3. Step 3: Cross multiply
    57,856.65x = 86,781.33 × 18,442.05
  4. Step 4: Simplify right side
    57,856.65x = 1,600,425,626.93
  5. Step 5: Solve for x
    x = 1,600,425,626.93/57,856.65
  6. Step 6: Final answer
    x = 27,661.91

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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.