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Finding the Fourth Proportional to 40,540, 60,788.88 and 18,334.24

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Solution

The fourth proportional to 40,540, 60,788.88 and 18,334.24 is: 27,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,540 : 60,788.88 = 18,334.24 : x
  2. Step 2: Convert to fraction form
    40,540/60,788.88 = 18,334.24/x
  3. Step 3: Cross multiply
    40,540x = 60,788.88 × 18,334.24
  4. Step 4: Simplify right side
    40,540x = 1,114,517,915.25
  5. Step 5: Solve for x
    x = 1,114,517,915.25/40,540
  6. Step 6: Final answer
    x = 27,491.81

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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.