Home / 57,183.58-78,911.06-31,691.04

Finding the Fourth Proportional to 57,183.58, 78,911.06 and 31,691.04

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Solution

The fourth proportional to 57,183.58, 78,911.06 and 31,691.04 is: 43,732.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,183.58 : 78,911.06 = 31,691.04 : x
  2. Step 2: Convert to fraction form
    57,183.58/78,911.06 = 31,691.04/x
  3. Step 3: Cross multiply
    57,183.58x = 78,911.06 × 31,691.04
  4. Step 4: Simplify right side
    57,183.58x = 2,500,773,558.90
  5. Step 5: Solve for x
    x = 2,500,773,558.90/57,183.58
  6. Step 6: Final answer
    x = 43,732.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.