Home / 45,722.88-68,551.52-20,750.38

Finding the Fourth Proportional to 45,722.88, 68,551.52 and 20,750.38

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Solution

The fourth proportional to 45,722.88, 68,551.52 and 20,750.38 is: 31,110.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,722.88 : 68,551.52 = 20,750.38 : x
  2. Step 2: Convert to fraction form
    45,722.88/68,551.52 = 20,750.38/x
  3. Step 3: Cross multiply
    45,722.88x = 68,551.52 × 20,750.38
  4. Step 4: Simplify right side
    45,722.88x = 1,422,469,814.45
  5. Step 5: Solve for x
    x = 1,422,469,814.45/45,722.88
  6. Step 6: Final answer
    x = 31,110.68

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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.