Home / 54,738.56-82,107.88-13,185.60

Finding the Fourth Proportional to 54,738.56, 82,107.88 and 13,185.60

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Solution

The fourth proportional to 54,738.56, 82,107.88 and 13,185.60 is: 19,778.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,738.56 : 82,107.88 = 13,185.60 : x
  2. Step 2: Convert to fraction form
    54,738.56/82,107.88 = 13,185.60/x
  3. Step 3: Cross multiply
    54,738.56x = 82,107.88 × 13,185.60
  4. Step 4: Simplify right side
    54,738.56x = 1,082,641,662.53
  5. Step 5: Solve for x
    x = 1,082,641,662.53/54,738.56
  6. Step 6: Final answer
    x = 19,778.41

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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.