Home / 45,183.78-67,781.64-16,716.87

Finding the Fourth Proportional to 45,183.78, 67,781.64 and 16,716.87

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Solution

The fourth proportional to 45,183.78, 67,781.64 and 16,716.87 is: 25,077.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,183.78 : 67,781.64 = 16,716.87 : x
  2. Step 2: Convert to fraction form
    45,183.78/67,781.64 = 16,716.87/x
  3. Step 3: Cross multiply
    45,183.78x = 67,781.64 × 16,716.87
  4. Step 4: Simplify right side
    45,183.78x = 1,133,096,864.27
  5. Step 5: Solve for x
    x = 1,133,096,864.27/45,183.78
  6. Step 6: Final answer
    x = 25,077.51

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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.