Home / 54,519.36-81,720.72-28,197.60

Finding the Fourth Proportional to 54,519.36, 81,720.72 and 28,197.60

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Solution

The fourth proportional to 54,519.36, 81,720.72 and 28,197.60 is: 42,266.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,519.36 : 81,720.72 = 28,197.60 : x
  2. Step 2: Convert to fraction form
    54,519.36/81,720.72 = 28,197.60/x
  3. Step 3: Cross multiply
    54,519.36x = 81,720.72 × 28,197.60
  4. Step 4: Simplify right side
    54,519.36x = 2,304,328,174.27
  5. Step 5: Solve for x
    x = 2,304,328,174.27/54,519.36
  6. Step 6: Final answer
    x = 42,266.24

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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.