Home / 54,481.13-75,179.92-30,611.78

Finding the Fourth Proportional to 54,481.13, 75,179.92 and 30,611.78

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Solution

The fourth proportional to 54,481.13, 75,179.92 and 30,611.78 is: 42,241.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,481.13 : 75,179.92 = 30,611.78 : x
  2. Step 2: Convert to fraction form
    54,481.13/75,179.92 = 30,611.78/x
  3. Step 3: Cross multiply
    54,481.13x = 75,179.92 × 30,611.78
  4. Step 4: Simplify right side
    54,481.13x = 2,301,391,018.40
  5. Step 5: Solve for x
    x = 2,301,391,018.40/54,481.13
  6. Step 6: Final answer
    x = 42,241.98

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1.5x scale

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.