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Finding the Fourth Proportional to 68,771.62, 94,903.68 and 38,558.08

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Solution

The fourth proportional to 68,771.62, 94,903.68 and 38,558.08 is: 53,209.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,771.62 : 94,903.68 = 38,558.08 : x
  2. Step 2: Convert to fraction form
    68,771.62/94,903.68 = 38,558.08/x
  3. Step 3: Cross multiply
    68,771.62x = 94,903.68 × 38,558.08
  4. Step 4: Simplify right side
    68,771.62x = 3,659,303,685.73
  5. Step 5: Solve for x
    x = 3,659,303,685.73/68,771.62
  6. Step 6: Final answer
    x = 53,209.50

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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.