Home / 45,951.69-68,936.75-20,985.03

Finding the Fourth Proportional to 45,951.69, 68,936.75 and 20,985.03

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Solution

The fourth proportional to 45,951.69, 68,936.75 and 20,985.03 is: 31,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,951.69 : 68,936.75 = 20,985.03 : x
  2. Step 2: Convert to fraction form
    45,951.69/68,936.75 = 20,985.03/x
  3. Step 3: Cross multiply
    45,951.69x = 68,936.75 × 20,985.03
  4. Step 4: Simplify right side
    45,951.69x = 1,446,639,766.85
  5. Step 5: Solve for x
    x = 1,446,639,766.85/45,951.69
  6. Step 6: Final answer
    x = 31,481.75

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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.