Home / 54,089.07-81,140.43-18,540.75

Finding the Fourth Proportional to 54,089.07, 81,140.43 and 18,540.75

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Solution

The fourth proportional to 54,089.07, 81,140.43 and 18,540.75 is: 27,813.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,089.07 : 81,140.43 = 18,540.75 : x
  2. Step 2: Convert to fraction form
    54,089.07/81,140.43 = 18,540.75/x
  3. Step 3: Cross multiply
    54,089.07x = 81,140.43 × 18,540.75
  4. Step 4: Simplify right side
    54,089.07x = 1,504,404,344.91
  5. Step 5: Solve for x
    x = 1,504,404,344.91/54,089.07
  6. Step 6: Final answer
    x = 27,813.46

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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.