Home / 57,740.11-86,592.85-20,293.20

Finding the Fourth Proportional to 57,740.11, 86,592.85 and 20,293.20

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Solution

The fourth proportional to 57,740.11, 86,592.85 and 20,293.20 is: 30,433.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,740.11 : 86,592.85 = 20,293.20 : x
  2. Step 2: Convert to fraction form
    57,740.11/86,592.85 = 20,293.20/x
  3. Step 3: Cross multiply
    57,740.11x = 86,592.85 × 20,293.20
  4. Step 4: Simplify right side
    57,740.11x = 1,757,245,972.89
  5. Step 5: Solve for x
    x = 1,757,245,972.89/57,740.11
  6. Step 6: Final answer
    x = 30,433.71

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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.