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Finding the Fourth Proportional to 90,272, 135,408 and 24,608

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Solution

The fourth proportional to 90,272, 135,408 and 24,608 is: 36,912

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,272 : 135,408 = 24,608 : x
  2. Step 2: Convert to fraction form
    90,272/135,408 = 24,608/x
  3. Step 3: Cross multiply
    90,272x = 135,408 × 24,608
  4. Step 4: Simplify right side
    90,272x = 3,332,120,064
  5. Step 5: Solve for x
    x = 3,332,120,064/90,272
  6. Step 6: Final answer
    x = 36,912

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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.