Home / 54,923.70-75,791.14-30,720.48

Finding the Fourth Proportional to 54,923.70, 75,791.14 and 30,720.48

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Solution

The fourth proportional to 54,923.70, 75,791.14 and 30,720.48 is: 42,392.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,923.70 : 75,791.14 = 30,720.48 : x
  2. Step 2: Convert to fraction form
    54,923.70/75,791.14 = 30,720.48/x
  3. Step 3: Cross multiply
    54,923.70x = 75,791.14 × 30,720.48
  4. Step 4: Simplify right side
    54,923.70x = 2,328,339,667.99
  5. Step 5: Solve for x
    x = 2,328,339,667.99/54,923.70
  6. Step 6: Final answer
    x = 42,392.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.