Home / 74,943.25-103,376.43-49,440.56

Finding the Fourth Proportional to 74,943.25, 103,376.43 and 49,440.56

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Solution

The fourth proportional to 74,943.25, 103,376.43 and 49,440.56 is: 68,198.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,943.25 : 103,376.43 = 49,440.56 : x
  2. Step 2: Convert to fraction form
    74,943.25/103,376.43 = 49,440.56/x
  3. Step 3: Cross multiply
    74,943.25x = 103,376.43 × 49,440.56
  4. Step 4: Simplify right side
    74,943.25x = 5,110,988,073.12
  5. Step 5: Solve for x
    x = 5,110,988,073.12/74,943.25
  6. Step 6: Final answer
    x = 68,198.11

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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.