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Finding the Fourth Proportional to 65,350.89, 90,183.78 and 36,278.96

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Solution

The fourth proportional to 65,350.89, 90,183.78 and 36,278.96 is: 50,064.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,350.89 : 90,183.78 = 36,278.96 : x
  2. Step 2: Convert to fraction form
    65,350.89/90,183.78 = 36,278.96/x
  3. Step 3: Cross multiply
    65,350.89x = 90,183.78 × 36,278.96
  4. Step 4: Simplify right side
    65,350.89x = 3,271,773,296.35
  5. Step 5: Solve for x
    x = 3,271,773,296.35/65,350.89
  6. Step 6: Final answer
    x = 50,064.71

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1.5x scale

Why These Related Problems?

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