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Finding the Fourth Proportional to 68,532.66, 102,776.97 and 21,774.60

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Solution

The fourth proportional to 68,532.66, 102,776.97 and 21,774.60 is: 32,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,532.66 : 102,776.97 = 21,774.60 : x
  2. Step 2: Convert to fraction form
    68,532.66/102,776.97 = 21,774.60/x
  3. Step 3: Cross multiply
    68,532.66x = 102,776.97 × 21,774.60
  4. Step 4: Simplify right side
    68,532.66x = 2,237,927,410.96
  5. Step 5: Solve for x
    x = 2,237,927,410.96/68,532.66
  6. Step 6: Final answer
    x = 32,654.90

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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.