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Finding the Fourth Proportional to 68,003.83, 102,005.64 and 18,083.95

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Solution

The fourth proportional to 68,003.83, 102,005.64 and 18,083.95 is: 27,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,003.83 : 102,005.64 = 18,083.95 : x
  2. Step 2: Convert to fraction form
    68,003.83/102,005.64 = 18,083.95/x
  3. Step 3: Cross multiply
    68,003.83x = 102,005.64 × 18,083.95
  4. Step 4: Simplify right side
    68,003.83x = 1,844,664,893.48
  5. Step 5: Solve for x
    x = 1,844,664,893.48/68,003.83
  6. Step 6: Final answer
    x = 27,125.90

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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.