Home / 54,452.28-81,640.02-21,144.60

Finding the Fourth Proportional to 54,452.28, 81,640.02 and 21,144.60

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Solution

The fourth proportional to 54,452.28, 81,640.02 and 21,144.60 is: 31,701.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,452.28 : 81,640.02 = 21,144.60 : x
  2. Step 2: Convert to fraction form
    54,452.28/81,640.02 = 21,144.60/x
  3. Step 3: Cross multiply
    54,452.28x = 81,640.02 × 21,144.60
  4. Step 4: Simplify right side
    54,452.28x = 1,726,245,566.89
  5. Step 5: Solve for x
    x = 1,726,245,566.89/54,452.28
  6. Step 6: Final answer
    x = 31,701.99

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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.