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Finding the Fourth Proportional to 56,183.69, 84,264.12 and 20,632.79

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Solution

The fourth proportional to 56,183.69, 84,264.12 and 20,632.79 is: 30,944.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,183.69 : 84,264.12 = 20,632.79 : x
  2. Step 2: Convert to fraction form
    56,183.69/84,264.12 = 20,632.79/x
  3. Step 3: Cross multiply
    56,183.69x = 84,264.12 × 20,632.79
  4. Step 4: Simplify right side
    56,183.69x = 1,738,603,471.17
  5. Step 5: Solve for x
    x = 1,738,603,471.17/56,183.69
  6. Step 6: Final answer
    x = 30,944.99

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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.