Home / 54,638.44-81,930.21-31,849.62

Finding the Fourth Proportional to 54,638.44, 81,930.21 and 31,849.62

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Solution

The fourth proportional to 54,638.44, 81,930.21 and 31,849.62 is: 47,758.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,638.44 : 81,930.21 = 31,849.62 : x
  2. Step 2: Convert to fraction form
    54,638.44/81,930.21 = 31,849.62/x
  3. Step 3: Cross multiply
    54,638.44x = 81,930.21 × 31,849.62
  4. Step 4: Simplify right side
    54,638.44x = 2,609,446,055.02
  5. Step 5: Solve for x
    x = 2,609,446,055.02/54,638.44
  6. Step 6: Final answer
    x = 47,758.43

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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.