Home / 54,964.08-82,481.76-19,900.80

Finding the Fourth Proportional to 54,964.08, 82,481.76 and 19,900.80

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Solution

The fourth proportional to 54,964.08, 82,481.76 and 19,900.80 is: 29,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,964.08 : 82,481.76 = 19,900.80 : x
  2. Step 2: Convert to fraction form
    54,964.08/82,481.76 = 19,900.80/x
  3. Step 3: Cross multiply
    54,964.08x = 82,481.76 × 19,900.80
  4. Step 4: Simplify right side
    54,964.08x = 1,641,453,009.41
  5. Step 5: Solve for x
    x = 1,641,453,009.41/54,964.08
  6. Step 6: Final answer
    x = 29,864.10

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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.