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Finding the Fourth Proportional to 45,508, 68,262 and 12,676

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Solution

The fourth proportional to 45,508, 68,262 and 12,676 is: 19,014

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,508 : 68,262 = 12,676 : x
  2. Step 2: Convert to fraction form
    45,508/68,262 = 12,676/x
  3. Step 3: Cross multiply
    45,508x = 68,262 × 12,676
  4. Step 4: Simplify right side
    45,508x = 865,289,112
  5. Step 5: Solve for x
    x = 865,289,112/45,508
  6. Step 6: Final answer
    x = 19,014

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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.