Home / 54,122.87-74,688.18-30,249.71

Finding the Fourth Proportional to 54,122.87, 74,688.18 and 30,249.71

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Solution

The fourth proportional to 54,122.87, 74,688.18 and 30,249.71 is: 41,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,122.87 : 74,688.18 = 30,249.71 : x
  2. Step 2: Convert to fraction form
    54,122.87/74,688.18 = 30,249.71/x
  3. Step 3: Cross multiply
    54,122.87x = 74,688.18 × 30,249.71
  4. Step 4: Simplify right side
    54,122.87x = 2,259,295,411.99
  5. Step 5: Solve for x
    x = 2,259,295,411.99/54,122.87
  6. Step 6: Final answer
    x = 41,743.83

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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.