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Finding the Fourth Proportional to 45,006, 67,462.92 and 18,726

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Solution

The fourth proportional to 45,006, 67,462.92 and 18,726 is: 28,069.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,006 : 67,462.92 = 18,726 : x
  2. Step 2: Convert to fraction form
    45,006/67,462.92 = 18,726/x
  3. Step 3: Cross multiply
    45,006x = 67,462.92 × 18,726
  4. Step 4: Simplify right side
    45,006x = 1,263,310,639.92
  5. Step 5: Solve for x
    x = 1,263,310,639.92/45,006
  6. Step 6: Final answer
    x = 28,069.83

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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.