Home / 54,759.72-82,139.58-21,495.45

Finding the Fourth Proportional to 54,759.72, 82,139.58 and 21,495.45

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Solution

The fourth proportional to 54,759.72, 82,139.58 and 21,495.45 is: 32,243.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,759.72 : 82,139.58 = 21,495.45 : x
  2. Step 2: Convert to fraction form
    54,759.72/82,139.58 = 21,495.45/x
  3. Step 3: Cross multiply
    54,759.72x = 82,139.58 × 21,495.45
  4. Step 4: Simplify right side
    54,759.72x = 1,765,627,234.91
  5. Step 5: Solve for x
    x = 1,765,627,234.91/54,759.72
  6. Step 6: Final answer
    x = 32,243.18

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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.