Home / 74,072.25-111,119.30-21,474.90

Finding the Fourth Proportional to 74,072.25, 111,119.30 and 21,474.90

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Solution

The fourth proportional to 74,072.25, 111,119.30 and 21,474.90 is: 32,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,072.25 : 111,119.30 = 21,474.90 : x
  2. Step 2: Convert to fraction form
    74,072.25/111,119.30 = 21,474.90/x
  3. Step 3: Cross multiply
    74,072.25x = 111,119.30 × 21,474.90
  4. Step 4: Simplify right side
    74,072.25x = 2,386,275,855.57
  5. Step 5: Solve for x
    x = 2,386,275,855.57/74,072.25
  6. Step 6: Final answer
    x = 32,215.52

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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.