Home / 54,136.78-81,184.34-18,591.48

Finding the Fourth Proportional to 54,136.78, 81,184.34 and 18,591.48

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Solution

The fourth proportional to 54,136.78, 81,184.34 and 18,591.48 is: 27,880.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,136.78 : 81,184.34 = 18,591.48 : x
  2. Step 2: Convert to fraction form
    54,136.78/81,184.34 = 18,591.48/x
  3. Step 3: Cross multiply
    54,136.78x = 81,184.34 × 18,591.48
  4. Step 4: Simplify right side
    54,136.78x = 1,509,337,033.42
  5. Step 5: Solve for x
    x = 1,509,337,033.42/54,136.78
  6. Step 6: Final answer
    x = 27,880.07

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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.