Home / 54,137.43-81,184.64-20,839.05

Finding the Fourth Proportional to 54,137.43, 81,184.64 and 20,839.05

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Solution

The fourth proportional to 54,137.43, 81,184.64 and 20,839.05 is: 31,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,137.43 : 81,184.64 = 20,839.05 : x
  2. Step 2: Convert to fraction form
    54,137.43/81,184.64 = 20,839.05/x
  3. Step 3: Cross multiply
    54,137.43x = 81,184.64 × 20,839.05
  4. Step 4: Simplify right side
    54,137.43x = 1,691,810,668.00
  5. Step 5: Solve for x
    x = 1,691,810,668.00/54,137.43
  6. Step 6: Final answer
    x = 31,250.30

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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.