Home / 74,243.25-111,311.97-34,778.84

Finding the Fourth Proportional to 74,243.25, 111,311.97 and 34,778.84

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Solution

The fourth proportional to 74,243.25, 111,311.97 and 34,778.84 is: 52,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,243.25 : 111,311.97 = 34,778.84 : x
  2. Step 2: Convert to fraction form
    74,243.25/111,311.97 = 34,778.84/x
  3. Step 3: Cross multiply
    74,243.25x = 111,311.97 × 34,778.84
  4. Step 4: Simplify right side
    74,243.25x = 3,871,300,638.15
  5. Step 5: Solve for x
    x = 3,871,300,638.15/74,243.25
  6. Step 6: Final answer
    x = 52,143.47

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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.