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Finding the Fourth Proportional to 36,138.74, 54,202.64 and 9,845.55

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Solution

The fourth proportional to 36,138.74, 54,202.64 and 9,845.55 is: 14,766.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,138.74 : 54,202.64 = 9,845.55 : x
  2. Step 2: Convert to fraction form
    36,138.74/54,202.64 = 9,845.55/x
  3. Step 3: Cross multiply
    36,138.74x = 54,202.64 × 9,845.55
  4. Step 4: Simplify right side
    36,138.74x = 533,654,753.02
  5. Step 5: Solve for x
    x = 533,654,753.02/36,138.74
  6. Step 6: Final answer
    x = 14,766.84

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1.5x scale

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.