Home / 49,272.57-68,018.13-31,391.82

Finding the Fourth Proportional to 49,272.57, 68,018.13 and 31,391.82

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Solution

The fourth proportional to 49,272.57, 68,018.13 and 31,391.82 is: 43,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,272.57 : 68,018.13 = 31,391.82 : x
  2. Step 2: Convert to fraction form
    49,272.57/68,018.13 = 31,391.82/x
  3. Step 3: Cross multiply
    49,272.57x = 68,018.13 × 31,391.82
  4. Step 4: Simplify right side
    49,272.57x = 2,135,212,893.70
  5. Step 5: Solve for x
    x = 2,135,212,893.70/49,272.57
  6. Step 6: Final answer
    x = 43,334.72

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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.