Home / 45,456.31-68,193.71-19,161.01

Finding the Fourth Proportional to 45,456.31, 68,193.71 and 19,161.01

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Solution

The fourth proportional to 45,456.31, 68,193.71 and 19,161.01 is: 28,745.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,456.31 : 68,193.71 = 19,161.01 : x
  2. Step 2: Convert to fraction form
    45,456.31/68,193.71 = 19,161.01/x
  3. Step 3: Cross multiply
    45,456.31x = 68,193.71 × 19,161.01
  4. Step 4: Simplify right side
    45,456.31x = 1,306,660,359.25
  5. Step 5: Solve for x
    x = 1,306,660,359.25/45,456.31
  6. Step 6: Final answer
    x = 28,745.41

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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.