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Finding the Fourth Proportional to 40,406.63, 60,619.49 and 12,704.63

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Solution

The fourth proportional to 40,406.63, 60,619.49 and 12,704.63 is: 19,059.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,406.63 : 60,619.49 = 12,704.63 : x
  2. Step 2: Convert to fraction form
    40,406.63/60,619.49 = 12,704.63/x
  3. Step 3: Cross multiply
    40,406.63x = 60,619.49 × 12,704.63
  4. Step 4: Simplify right side
    40,406.63x = 770,148,191.24
  5. Step 5: Solve for x
    x = 770,148,191.24/40,406.63
  6. Step 6: Final answer
    x = 19,059.95

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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.