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Finding the Fourth Proportional to 66,378, 99,567 and 22,602

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Solution

The fourth proportional to 66,378, 99,567 and 22,602 is: 33,903

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,378 : 99,567 = 22,602 : x
  2. Step 2: Convert to fraction form
    66,378/99,567 = 22,602/x
  3. Step 3: Cross multiply
    66,378x = 99,567 × 22,602
  4. Step 4: Simplify right side
    66,378x = 2,250,413,334
  5. Step 5: Solve for x
    x = 2,250,413,334/66,378
  6. Step 6: Final answer
    x = 33,903

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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.