Home / 57,712.20-86,576.40-18,265.20

Finding the Fourth Proportional to 57,712.20, 86,576.40 and 18,265.20

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Solution

The fourth proportional to 57,712.20, 86,576.40 and 18,265.20 is: 27,400.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,712.20 : 86,576.40 = 18,265.20 : x
  2. Step 2: Convert to fraction form
    57,712.20/86,576.40 = 18,265.20/x
  3. Step 3: Cross multiply
    57,712.20x = 86,576.40 × 18,265.20
  4. Step 4: Simplify right side
    57,712.20x = 1,581,335,261.28
  5. Step 5: Solve for x
    x = 1,581,335,261.28/57,712.20
  6. Step 6: Final answer
    x = 27,400.36

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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.