Home / 73,042.71-109,555.56-20,456.43

Finding the Fourth Proportional to 73,042.71, 109,555.56 and 20,456.43

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Solution

The fourth proportional to 73,042.71, 109,555.56 and 20,456.43 is: 30,682.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,042.71 : 109,555.56 = 20,456.43 : x
  2. Step 2: Convert to fraction form
    73,042.71/109,555.56 = 20,456.43/x
  3. Step 3: Cross multiply
    73,042.71x = 109,555.56 × 20,456.43
  4. Step 4: Simplify right side
    73,042.71x = 2,241,115,644.25
  5. Step 5: Solve for x
    x = 2,241,115,644.25/73,042.71
  6. Step 6: Final answer
    x = 30,682.26

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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.