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Finding the Fourth Proportional to 54,183.71, 81,298.82 and 20,927.13

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Solution

The fourth proportional to 54,183.71, 81,298.82 and 20,927.13 is: 31,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,183.71 : 81,298.82 = 20,927.13 : x
  2. Step 2: Convert to fraction form
    54,183.71/81,298.82 = 20,927.13/x
  3. Step 3: Cross multiply
    54,183.71x = 81,298.82 × 20,927.13
  4. Step 4: Simplify right side
    54,183.71x = 1,701,350,974.99
  5. Step 5: Solve for x
    x = 1,701,350,974.99/54,183.71
  6. Step 6: Final answer
    x = 31,399.68

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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.