Home / 74,443.05-111,665.79-21,853.80

Finding the Fourth Proportional to 74,443.05, 111,665.79 and 21,853.80

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Solution

The fourth proportional to 74,443.05, 111,665.79 and 21,853.80 is: 32,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,443.05 : 111,665.79 = 21,853.80 : x
  2. Step 2: Convert to fraction form
    74,443.05/111,665.79 = 21,853.80/x
  3. Step 3: Cross multiply
    74,443.05x = 111,665.79 × 21,853.80
  4. Step 4: Simplify right side
    74,443.05x = 2,440,321,841.50
  5. Step 5: Solve for x
    x = 2,440,321,841.50/74,443.05
  6. Step 6: Final answer
    x = 32,781.06

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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.