Home / 55,579.22-83,378.01-18,128.42

Finding the Fourth Proportional to 55,579.22, 83,378.01 and 18,128.42

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Solution

The fourth proportional to 55,579.22, 83,378.01 and 18,128.42 is: 27,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,579.22 : 83,378.01 = 18,128.42 : x
  2. Step 2: Convert to fraction form
    55,579.22/83,378.01 = 18,128.42/x
  3. Step 3: Cross multiply
    55,579.22x = 83,378.01 × 18,128.42
  4. Step 4: Simplify right side
    55,579.22x = 1,511,511,584.04
  5. Step 5: Solve for x
    x = 1,511,511,584.04/55,579.22
  6. Step 6: Final answer
    x = 27,195.62

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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.