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Finding the Fourth Proportional to 68,661, 94,757.85 and 38,453.27

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Solution

The fourth proportional to 68,661, 94,757.85 and 38,453.27 is: 53,068.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,661 : 94,757.85 = 38,453.27 : x
  2. Step 2: Convert to fraction form
    68,661/94,757.85 = 38,453.27/x
  3. Step 3: Cross multiply
    68,661x = 94,757.85 × 38,453.27
  4. Step 4: Simplify right side
    68,661x = 3,643,748,716.88
  5. Step 5: Solve for x
    x = 3,643,748,716.88/68,661
  6. Step 6: Final answer
    x = 53,068.68

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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.