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Finding the Fourth Proportional to 49,212, 73,818 and 12,276

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Solution

The fourth proportional to 49,212, 73,818 and 12,276 is: 18,414

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,212 : 73,818 = 12,276 : x
  2. Step 2: Convert to fraction form
    49,212/73,818 = 12,276/x
  3. Step 3: Cross multiply
    49,212x = 73,818 × 12,276
  4. Step 4: Simplify right side
    49,212x = 906,189,768
  5. Step 5: Solve for x
    x = 906,189,768/49,212
  6. Step 6: Final answer
    x = 18,414

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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.