Home / 54,519.19-81,745.29-21,200.41

Finding the Fourth Proportional to 54,519.19, 81,745.29 and 21,200.41

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Solution

The fourth proportional to 54,519.19, 81,745.29 and 21,200.41 is: 31,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,519.19 : 81,745.29 = 21,200.41 : x
  2. Step 2: Convert to fraction form
    54,519.19/81,745.29 = 21,200.41/x
  3. Step 3: Cross multiply
    54,519.19x = 81,745.29 × 21,200.41
  4. Step 4: Simplify right side
    54,519.19x = 1,733,033,697.60
  5. Step 5: Solve for x
    x = 1,733,033,697.60/54,519.19
  6. Step 6: Final answer
    x = 31,787.59

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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.