Home / 74,265.12-111,375.36-21,660.48

Finding the Fourth Proportional to 74,265.12, 111,375.36 and 21,660.48

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Solution

The fourth proportional to 74,265.12, 111,375.36 and 21,660.48 is: 32,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,265.12 : 111,375.36 = 21,660.48 : x
  2. Step 2: Convert to fraction form
    74,265.12/111,375.36 = 21,660.48/x
  3. Step 3: Cross multiply
    74,265.12x = 111,375.36 × 21,660.48
  4. Step 4: Simplify right side
    74,265.12x = 2,412,443,757.77
  5. Step 5: Solve for x
    x = 2,412,443,757.77/74,265.12
  6. Step 6: Final answer
    x = 32,484.21

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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.