Home / 54,801.12-82,151.88-19,732.80

Finding the Fourth Proportional to 54,801.12, 82,151.88 and 19,732.80

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Solution

The fourth proportional to 54,801.12, 82,151.88 and 19,732.80 is: 29,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,801.12 : 82,151.88 = 19,732.80 : x
  2. Step 2: Convert to fraction form
    54,801.12/82,151.88 = 19,732.80/x
  3. Step 3: Cross multiply
    54,801.12x = 82,151.88 × 19,732.80
  4. Step 4: Simplify right side
    54,801.12x = 1,621,086,617.66
  5. Step 5: Solve for x
    x = 1,621,086,617.66/54,801.12
  6. Step 6: Final answer
    x = 29,581.27

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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.