Home / 57,542.70-86,314.05-18,111.90

Finding the Fourth Proportional to 57,542.70, 86,314.05 and 18,111.90

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Solution

The fourth proportional to 57,542.70, 86,314.05 and 18,111.90 is: 27,167.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,542.70 : 86,314.05 = 18,111.90 : x
  2. Step 2: Convert to fraction form
    57,542.70/86,314.05 = 18,111.90/x
  3. Step 3: Cross multiply
    57,542.70x = 86,314.05 × 18,111.90
  4. Step 4: Simplify right side
    57,542.70x = 1,563,311,442.20
  5. Step 5: Solve for x
    x = 1,563,311,442.20/57,542.70
  6. Step 6: Final answer
    x = 27,167.85

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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.