Home / 57,204.92-78,940.68-31,712.36

Finding the Fourth Proportional to 57,204.92, 78,940.68 and 31,712.36

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Solution

The fourth proportional to 57,204.92, 78,940.68 and 31,712.36 is: 43,761.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,204.92 : 78,940.68 = 31,712.36 : x
  2. Step 2: Convert to fraction form
    57,204.92/78,940.68 = 31,712.36/x
  3. Step 3: Cross multiply
    57,204.92x = 78,940.68 × 31,712.36
  4. Step 4: Simplify right side
    57,204.92x = 2,503,395,262.80
  5. Step 5: Solve for x
    x = 2,503,395,262.80/57,204.92
  6. Step 6: Final answer
    x = 43,761.89

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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.