Home / 45,414.33-68,127.77-12,135.48

Finding the Fourth Proportional to 45,414.33, 68,127.77 and 12,135.48

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Solution

The fourth proportional to 45,414.33, 68,127.77 and 12,135.48 is: 18,204.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,414.33 : 68,127.77 = 12,135.48 : x
  2. Step 2: Convert to fraction form
    45,414.33/68,127.77 = 12,135.48/x
  3. Step 3: Cross multiply
    45,414.33x = 68,127.77 × 12,135.48
  4. Step 4: Simplify right side
    45,414.33x = 826,763,190.28
  5. Step 5: Solve for x
    x = 826,763,190.28/45,414.33
  6. Step 6: Final answer
    x = 18,204.90

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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.