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Finding the Fourth Proportional to 68,635.60, 102,496.63 and 67,893.39

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Solution

The fourth proportional to 68,635.60, 102,496.63 and 67,893.39 is: 101,388.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,635.60 : 102,496.63 = 67,893.39 : x
  2. Step 2: Convert to fraction form
    68,635.60/102,496.63 = 67,893.39/x
  3. Step 3: Cross multiply
    68,635.60x = 102,496.63 × 67,893.39
  4. Step 4: Simplify right side
    68,635.60x = 6,958,843,674.28
  5. Step 5: Solve for x
    x = 6,958,843,674.28/68,635.60
  6. Step 6: Final answer
    x = 101,388.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.