Home / 71,717.60-98,972.68-39,453.56

Finding the Fourth Proportional to 71,717.60, 98,972.68 and 39,453.56

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Solution

The fourth proportional to 71,717.60, 98,972.68 and 39,453.56 is: 54,447.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,717.60 : 98,972.68 = 39,453.56 : x
  2. Step 2: Convert to fraction form
    71,717.60/98,972.68 = 39,453.56/x
  3. Step 3: Cross multiply
    71,717.60x = 98,972.68 × 39,453.56
  4. Step 4: Simplify right side
    71,717.60x = 3,904,824,568.74
  5. Step 5: Solve for x
    x = 3,904,824,568.74/71,717.60
  6. Step 6: Final answer
    x = 54,447.23

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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.