Home / 54,461.28-81,696.94-21,183.86

Finding the Fourth Proportional to 54,461.28, 81,696.94 and 21,183.86

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Solution

The fourth proportional to 54,461.28, 81,696.94 and 21,183.86 is: 31,777.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,461.28 : 81,696.94 = 21,183.86 : x
  2. Step 2: Convert to fraction form
    54,461.28/81,696.94 = 21,183.86/x
  3. Step 3: Cross multiply
    54,461.28x = 81,696.94 × 21,183.86
  4. Step 4: Simplify right side
    54,461.28x = 1,730,656,539.39
  5. Step 5: Solve for x
    x = 1,730,656,539.39/54,461.28
  6. Step 6: Final answer
    x = 31,777.74

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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.