Home / 54,072.75-81,109.13-17,136.75

Finding the Fourth Proportional to 54,072.75, 81,109.13 and 17,136.75

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Solution

The fourth proportional to 54,072.75, 81,109.13 and 17,136.75 is: 25,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,072.75 : 81,109.13 = 17,136.75 : x
  2. Step 2: Convert to fraction form
    54,072.75/81,109.13 = 17,136.75/x
  3. Step 3: Cross multiply
    54,072.75x = 81,109.13 × 17,136.75
  4. Step 4: Simplify right side
    54,072.75x = 1,389,946,797.84
  5. Step 5: Solve for x
    x = 1,389,946,797.84/54,072.75
  6. Step 6: Final answer
    x = 25,705.13

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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.