Home / 45,371.10-68,040.45-15,789.90

Finding the Fourth Proportional to 45,371.10, 68,040.45 and 15,789.90

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Solution

The fourth proportional to 45,371.10, 68,040.45 and 15,789.90 is: 23,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,371.10 : 68,040.45 = 15,789.90 : x
  2. Step 2: Convert to fraction form
    45,371.10/68,040.45 = 15,789.90/x
  3. Step 3: Cross multiply
    45,371.10x = 68,040.45 × 15,789.90
  4. Step 4: Simplify right side
    45,371.10x = 1,074,351,901.46
  5. Step 5: Solve for x
    x = 1,074,351,901.46/45,371.10
  6. Step 6: Final answer
    x = 23,679.21

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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.