Home / 54,238.44-81,295.20-20,943.84

Finding the Fourth Proportional to 54,238.44, 81,295.20 and 20,943.84

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Solution

The fourth proportional to 54,238.44, 81,295.20 and 20,943.84 is: 31,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,238.44 : 81,295.20 = 20,943.84 : x
  2. Step 2: Convert to fraction form
    54,238.44/81,295.20 = 20,943.84/x
  3. Step 3: Cross multiply
    54,238.44x = 81,295.20 × 20,943.84
  4. Step 4: Simplify right side
    54,238.44x = 1,702,633,661.57
  5. Step 5: Solve for x
    x = 1,702,633,661.57/54,238.44
  6. Step 6: Final answer
    x = 31,391.64

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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.