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Finding the Fourth Proportional to 90,456, 135,684 and 24,792

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Solution

The fourth proportional to 90,456, 135,684 and 24,792 is: 37,188

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,456 : 135,684 = 24,792 : x
  2. Step 2: Convert to fraction form
    90,456/135,684 = 24,792/x
  3. Step 3: Cross multiply
    90,456x = 135,684 × 24,792
  4. Step 4: Simplify right side
    90,456x = 3,363,877,728
  5. Step 5: Solve for x
    x = 3,363,877,728/90,456
  6. Step 6: Final answer
    x = 37,188

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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.