Home / 57,138.62-85,684.23-21,593.79

Finding the Fourth Proportional to 57,138.62, 85,684.23 and 21,593.79

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Solution

The fourth proportional to 57,138.62, 85,684.23 and 21,593.79 is: 32,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,138.62 : 85,684.23 = 21,593.79 : x
  2. Step 2: Convert to fraction form
    57,138.62/85,684.23 = 21,593.79/x
  3. Step 3: Cross multiply
    57,138.62x = 85,684.23 × 21,593.79
  4. Step 4: Simplify right side
    57,138.62x = 1,850,247,268.93
  5. Step 5: Solve for x
    x = 1,850,247,268.93/57,138.62
  6. Step 6: Final answer
    x = 32,381.73

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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.