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Finding the Fourth Proportional to 45,502, 68,253 and 12,670

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Solution

The fourth proportional to 45,502, 68,253 and 12,670 is: 19,005

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,502 : 68,253 = 12,670 : x
  2. Step 2: Convert to fraction form
    45,502/68,253 = 12,670/x
  3. Step 3: Cross multiply
    45,502x = 68,253 × 12,670
  4. Step 4: Simplify right side
    45,502x = 864,765,510
  5. Step 5: Solve for x
    x = 864,765,510/45,502
  6. Step 6: Final answer
    x = 19,005

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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.