Home / 68,822.82-103,214.39-18,904.55

Finding the Fourth Proportional to 68,822.82, 103,214.39 and 18,904.55

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Solution

The fourth proportional to 68,822.82, 103,214.39 and 18,904.55 is: 28,351.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,822.82 : 103,214.39 = 18,904.55 : x
  2. Step 2: Convert to fraction form
    68,822.82/103,214.39 = 18,904.55/x
  3. Step 3: Cross multiply
    68,822.82x = 103,214.39 × 18,904.55
  4. Step 4: Simplify right side
    68,822.82x = 1,951,220,985.88
  5. Step 5: Solve for x
    x = 1,951,220,985.88/68,822.82
  6. Step 6: Final answer
    x = 28,351.37

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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.