Home / 53,198.56-79,810.26-18,138.52

Finding the Fourth Proportional to 53,198.56, 79,810.26 and 18,138.52

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Solution

The fourth proportional to 53,198.56, 79,810.26 and 18,138.52 is: 27,212.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,198.56 : 79,810.26 = 18,138.52 : x
  2. Step 2: Convert to fraction form
    53,198.56/79,810.26 = 18,138.52/x
  3. Step 3: Cross multiply
    53,198.56x = 79,810.26 × 18,138.52
  4. Step 4: Simplify right side
    53,198.56x = 1,447,639,997.22
  5. Step 5: Solve for x
    x = 1,447,639,997.22/53,198.56
  6. Step 6: Final answer
    x = 27,212.01

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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.