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Finding the Fourth Proportional to 67,289.63, 100,949.23 and 19,901.03

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Solution

The fourth proportional to 67,289.63, 100,949.23 and 19,901.03 is: 29,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,289.63 : 100,949.23 = 19,901.03 : x
  2. Step 2: Convert to fraction form
    67,289.63/100,949.23 = 19,901.03/x
  3. Step 3: Cross multiply
    67,289.63x = 100,949.23 × 19,901.03
  4. Step 4: Simplify right side
    67,289.63x = 2,008,993,705.36
  5. Step 5: Solve for x
    x = 2,008,993,705.36/67,289.63
  6. Step 6: Final answer
    x = 29,855.92

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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.