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Finding the Fourth Proportional to 68,436.77, 102,837.41 and 36,871.07

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Solution

The fourth proportional to 68,436.77, 102,837.41 and 36,871.07 is: 55,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,436.77 : 102,837.41 = 36,871.07 : x
  2. Step 2: Convert to fraction form
    68,436.77/102,837.41 = 36,871.07/x
  3. Step 3: Cross multiply
    68,436.77x = 102,837.41 × 36,871.07
  4. Step 4: Simplify right side
    68,436.77x = 3,791,725,553.73
  5. Step 5: Solve for x
    x = 3,791,725,553.73/68,436.77
  6. Step 6: Final answer
    x = 55,404.80

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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.