Home / 54,020.44-81,003.21-31,538.71

Finding the Fourth Proportional to 54,020.44, 81,003.21 and 31,538.71

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Solution

The fourth proportional to 54,020.44, 81,003.21 and 31,538.71 is: 47,292.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,020.44 : 81,003.21 = 31,538.71 : x
  2. Step 2: Convert to fraction form
    54,020.44/81,003.21 = 31,538.71/x
  3. Step 3: Cross multiply
    54,020.44x = 81,003.21 × 31,538.71
  4. Step 4: Simplify right side
    54,020.44x = 2,554,736,749.26
  5. Step 5: Solve for x
    x = 2,554,736,749.26/54,020.44
  6. Step 6: Final answer
    x = 47,292.04

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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.