Home / 54,519.83-81,731.27-21,232.20

Finding the Fourth Proportional to 54,519.83, 81,731.27 and 21,232.20

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Solution

The fourth proportional to 54,519.83, 81,731.27 and 21,232.20 is: 31,829.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,519.83 : 81,731.27 = 21,232.20 : x
  2. Step 2: Convert to fraction form
    54,519.83/81,731.27 = 21,232.20/x
  3. Step 3: Cross multiply
    54,519.83x = 81,731.27 × 21,232.20
  4. Step 4: Simplify right side
    54,519.83x = 1,735,334,723.97
  5. Step 5: Solve for x
    x = 1,735,334,723.97/54,519.83
  6. Step 6: Final answer
    x = 31,829.43

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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.