Home / 57,704.20-86,564.40-18,257.20

Finding the Fourth Proportional to 57,704.20, 86,564.40 and 18,257.20

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Solution

The fourth proportional to 57,704.20, 86,564.40 and 18,257.20 is: 27,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,704.20 : 86,564.40 = 18,257.20 : x
  2. Step 2: Convert to fraction form
    57,704.20/86,564.40 = 18,257.20/x
  3. Step 3: Cross multiply
    57,704.20x = 86,564.40 × 18,257.20
  4. Step 4: Simplify right side
    57,704.20x = 1,580,423,563.68
  5. Step 5: Solve for x
    x = 1,580,423,563.68/57,704.20
  6. Step 6: Final answer
    x = 27,388.36

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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.