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Finding the Fourth Proportional to 68,280, 94,226.79 and 38,067.22

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Solution

The fourth proportional to 68,280, 94,226.79 and 38,067.22 is: 52,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,280 : 94,226.79 = 38,067.22 : x
  2. Step 2: Convert to fraction form
    68,280/94,226.79 = 38,067.22/x
  3. Step 3: Cross multiply
    68,280x = 94,226.79 × 38,067.22
  4. Step 4: Simplify right side
    68,280x = 3,586,951,944.82
  5. Step 5: Solve for x
    x = 3,586,951,944.82/68,280
  6. Step 6: Final answer
    x = 52,532.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.