Home / 54,791.10-82,186.68-18,770.28

Finding the Fourth Proportional to 54,791.10, 82,186.68 and 18,770.28

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Solution

The fourth proportional to 54,791.10, 82,186.68 and 18,770.28 is: 28,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,791.10 : 82,186.68 = 18,770.28 : x
  2. Step 2: Convert to fraction form
    54,791.10/82,186.68 = 18,770.28/x
  3. Step 3: Cross multiply
    54,791.10x = 82,186.68 × 18,770.28
  4. Step 4: Simplify right side
    54,791.10x = 1,542,666,995.87
  5. Step 5: Solve for x
    x = 1,542,666,995.87/54,791.10
  6. Step 6: Final answer
    x = 28,155.43

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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.