Home / 36,122.13-54,172.08-12,743.10

Finding the Fourth Proportional to 36,122.13, 54,172.08 and 12,743.10

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Solution

The fourth proportional to 36,122.13, 54,172.08 and 12,743.10 is: 19,110.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,122.13 : 54,172.08 = 12,743.10 : x
  2. Step 2: Convert to fraction form
    36,122.13/54,172.08 = 12,743.10/x
  3. Step 3: Cross multiply
    36,122.13x = 54,172.08 × 12,743.10
  4. Step 4: Simplify right side
    36,122.13x = 690,320,232.65
  5. Step 5: Solve for x
    x = 690,320,232.65/36,122.13
  6. Step 6: Final answer
    x = 19,110.73

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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.