Home / 54,136.35-81,167.56-28,839.64

Finding the Fourth Proportional to 54,136.35, 81,167.56 and 28,839.64

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Solution

The fourth proportional to 54,136.35, 81,167.56 and 28,839.64 is: 43,239.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,136.35 : 81,167.56 = 28,839.64 : x
  2. Step 2: Convert to fraction form
    54,136.35/81,167.56 = 28,839.64/x
  3. Step 3: Cross multiply
    54,136.35x = 81,167.56 × 28,839.64
  4. Step 4: Simplify right side
    54,136.35x = 2,340,843,210.08
  5. Step 5: Solve for x
    x = 2,340,843,210.08/54,136.35
  6. Step 6: Final answer
    x = 43,239.77

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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.