Home / 54,974.62-75,858.56-30,776.90

Finding the Fourth Proportional to 54,974.62, 75,858.56 and 30,776.90

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Solution

The fourth proportional to 54,974.62, 75,858.56 and 30,776.90 is: 42,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,974.62 : 75,858.56 = 30,776.90 : x
  2. Step 2: Convert to fraction form
    54,974.62/75,858.56 = 30,776.90/x
  3. Step 3: Cross multiply
    54,974.62x = 75,858.56 × 30,776.90
  4. Step 4: Simplify right side
    54,974.62x = 2,334,691,315.26
  5. Step 5: Solve for x
    x = 2,334,691,315.26/54,974.62
  6. Step 6: Final answer
    x = 42,468.53

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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.