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Finding the Fourth Proportional to 68,396.54, 94,392 and 38,187.80

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Solution

The fourth proportional to 68,396.54, 94,392 and 38,187.80 is: 52,701.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,396.54 : 94,392 = 38,187.80 : x
  2. Step 2: Convert to fraction form
    68,396.54/94,392 = 38,187.80/x
  3. Step 3: Cross multiply
    68,396.54x = 94,392 × 38,187.80
  4. Step 4: Simplify right side
    68,396.54x = 3,604,622,817.60
  5. Step 5: Solve for x
    x = 3,604,622,817.60/68,396.54
  6. Step 6: Final answer
    x = 52,701.83

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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.