Home / 71,982.13-99,334.68-39,717.04

Finding the Fourth Proportional to 71,982.13, 99,334.68 and 39,717.04

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Solution

The fourth proportional to 71,982.13, 99,334.68 and 39,717.04 is: 54,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,982.13 : 99,334.68 = 39,717.04 : x
  2. Step 2: Convert to fraction form
    71,982.13/99,334.68 = 39,717.04/x
  3. Step 3: Cross multiply
    71,982.13x = 99,334.68 × 39,717.04
  4. Step 4: Simplify right side
    71,982.13x = 3,945,279,458.95
  5. Step 5: Solve for x
    x = 3,945,279,458.95/71,982.13
  6. Step 6: Final answer
    x = 54,809.15

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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.