Home / 54,107.30-81,160.02-20,834.60

Finding the Fourth Proportional to 54,107.30, 81,160.02 and 20,834.60

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Solution

The fourth proportional to 54,107.30, 81,160.02 and 20,834.60 is: 31,251.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,107.30 : 81,160.02 = 20,834.60 : x
  2. Step 2: Convert to fraction form
    54,107.30/81,160.02 = 20,834.60/x
  3. Step 3: Cross multiply
    54,107.30x = 81,160.02 × 20,834.60
  4. Step 4: Simplify right side
    54,107.30x = 1,690,936,552.69
  5. Step 5: Solve for x
    x = 1,690,936,552.69/54,107.30
  6. Step 6: Final answer
    x = 31,251.54

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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.