Home / 77,923.11-116,855.97-27,989.80

Finding the Fourth Proportional to 77,923.11, 116,855.97 and 27,989.80

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Solution

The fourth proportional to 77,923.11, 116,855.97 and 27,989.80 is: 41,974.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,923.11 : 116,855.97 = 27,989.80 : x
  2. Step 2: Convert to fraction form
    77,923.11/116,855.97 = 27,989.80/x
  3. Step 3: Cross multiply
    77,923.11x = 116,855.97 × 27,989.80
  4. Step 4: Simplify right side
    77,923.11x = 3,270,775,489.32
  5. Step 5: Solve for x
    x = 3,270,775,489.32/77,923.11
  6. Step 6: Final answer
    x = 41,974.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.