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Finding the Fourth Proportional to 66,744.87, 100,096.63 and 19,363.44

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Solution

The fourth proportional to 66,744.87, 100,096.63 and 19,363.44 is: 29,039.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,744.87 : 100,096.63 = 19,363.44 : x
  2. Step 2: Convert to fraction form
    66,744.87/100,096.63 = 19,363.44/x
  3. Step 3: Cross multiply
    66,744.87x = 100,096.63 × 19,363.44
  4. Step 4: Simplify right side
    66,744.87x = 1,938,215,089.21
  5. Step 5: Solve for x
    x = 1,938,215,089.21/66,744.87
  6. Step 6: Final answer
    x = 29,039.16

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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.