Home / 54,759.13-82,138.69-21,494.86

Finding the Fourth Proportional to 54,759.13, 82,138.69 and 21,494.86

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Solution

The fourth proportional to 54,759.13, 82,138.69 and 21,494.86 is: 32,242.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,759.13 : 82,138.69 = 21,494.86 : x
  2. Step 2: Convert to fraction form
    54,759.13/82,138.69 = 21,494.86/x
  3. Step 3: Cross multiply
    54,759.13x = 82,138.69 × 21,494.86
  4. Step 4: Simplify right side
    54,759.13x = 1,765,559,231.44
  5. Step 5: Solve for x
    x = 1,765,559,231.44/54,759.13
  6. Step 6: Final answer
    x = 32,242.28

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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.