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Finding the Fourth Proportional to 66,928, 100,392 and 23,152

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Solution

The fourth proportional to 66,928, 100,392 and 23,152 is: 34,728

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,928 : 100,392 = 23,152 : x
  2. Step 2: Convert to fraction form
    66,928/100,392 = 23,152/x
  3. Step 3: Cross multiply
    66,928x = 100,392 × 23,152
  4. Step 4: Simplify right side
    66,928x = 2,324,275,584
  5. Step 5: Solve for x
    x = 2,324,275,584/66,928
  6. Step 6: Final answer
    x = 34,728

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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.