Home / 45,091.44-67,630.68-18,791.28

Finding the Fourth Proportional to 45,091.44, 67,630.68 and 18,791.28

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Solution

The fourth proportional to 45,091.44, 67,630.68 and 18,791.28 is: 28,184.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,091.44 : 67,630.68 = 18,791.28 : x
  2. Step 2: Convert to fraction form
    45,091.44/67,630.68 = 18,791.28/x
  3. Step 3: Cross multiply
    45,091.44x = 67,630.68 × 18,791.28
  4. Step 4: Simplify right side
    45,091.44x = 1,270,867,044.47
  5. Step 5: Solve for x
    x = 1,270,867,044.47/45,091.44
  6. Step 6: Final answer
    x = 28,184.22

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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.