Home / 54,974.31-82,461.25-19,905.76

Finding the Fourth Proportional to 54,974.31, 82,461.25 and 19,905.76

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Solution

The fourth proportional to 54,974.31, 82,461.25 and 19,905.76 is: 29,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,974.31 : 82,461.25 = 19,905.76 : x
  2. Step 2: Convert to fraction form
    54,974.31/82,461.25 = 19,905.76/x
  3. Step 3: Cross multiply
    54,974.31x = 82,461.25 × 19,905.76
  4. Step 4: Simplify right side
    54,974.31x = 1,641,453,851.80
  5. Step 5: Solve for x
    x = 1,641,453,851.80/54,974.31
  6. Step 6: Final answer
    x = 29,858.56

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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.