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Finding the Fourth Proportional to 68,508, 102,762 and 19,260

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Solution

The fourth proportional to 68,508, 102,762 and 19,260 is: 28,890

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,508 : 102,762 = 19,260 : x
  2. Step 2: Convert to fraction form
    68,508/102,762 = 19,260/x
  3. Step 3: Cross multiply
    68,508x = 102,762 × 19,260
  4. Step 4: Simplify right side
    68,508x = 1,979,196,120
  5. Step 5: Solve for x
    x = 1,979,196,120/68,508
  6. Step 6: Final answer
    x = 28,890

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.