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Finding the Fourth Proportional to 68,994.78, 103,494.60 and 26,878.02

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Solution

The fourth proportional to 68,994.78, 103,494.60 and 26,878.02 is: 40,317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,994.78 : 103,494.60 = 26,878.02 : x
  2. Step 2: Convert to fraction form
    68,994.78/103,494.60 = 26,878.02/x
  3. Step 3: Cross multiply
    68,994.78x = 103,494.60 × 26,878.02
  4. Step 4: Simplify right side
    68,994.78x = 2,781,729,928.69
  5. Step 5: Solve for x
    x = 2,781,729,928.69/68,994.78
  6. Step 6: Final answer
    x = 40,317.98

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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.