Home / 57,584.20-86,401.38-20,171.16

Finding the Fourth Proportional to 57,584.20, 86,401.38 and 20,171.16

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Solution

The fourth proportional to 57,584.20, 86,401.38 and 20,171.16 is: 30,265.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,584.20 : 86,401.38 = 20,171.16 : x
  2. Step 2: Convert to fraction form
    57,584.20/86,401.38 = 20,171.16/x
  3. Step 3: Cross multiply
    57,584.20x = 86,401.38 × 20,171.16
  4. Step 4: Simplify right side
    57,584.20x = 1,742,816,060.20
  5. Step 5: Solve for x
    x = 1,742,816,060.20/57,584.20
  6. Step 6: Final answer
    x = 30,265.53

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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.