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Finding the Fourth Proportional to 36,380.78, 50,211.61 and 21,065.10

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Solution

The fourth proportional to 36,380.78, 50,211.61 and 21,065.10 is: 29,073.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,380.78 : 50,211.61 = 21,065.10 : x
  2. Step 2: Convert to fraction form
    36,380.78/50,211.61 = 21,065.10/x
  3. Step 3: Cross multiply
    36,380.78x = 50,211.61 × 21,065.10
  4. Step 4: Simplify right side
    36,380.78x = 1,057,712,533.15
  5. Step 5: Solve for x
    x = 1,057,712,533.15/36,380.78
  6. Step 6: Final answer
    x = 29,073.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.