Home / 55,865.97-83,781.14-18,419.06

Finding the Fourth Proportional to 55,865.97, 83,781.14 and 18,419.06

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Solution

The fourth proportional to 55,865.97, 83,781.14 and 18,419.06 is: 27,622.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,865.97 : 83,781.14 = 18,419.06 : x
  2. Step 2: Convert to fraction form
    55,865.97/83,781.14 = 18,419.06/x
  3. Step 3: Cross multiply
    55,865.97x = 83,781.14 × 18,419.06
  4. Step 4: Simplify right side
    55,865.97x = 1,543,169,333.53
  5. Step 5: Solve for x
    x = 1,543,169,333.53/55,865.97
  6. Step 6: Final answer
    x = 27,622.71

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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.