Home / 74,248.69-111,361.20-21,645.88

Finding the Fourth Proportional to 74,248.69, 111,361.20 and 21,645.88

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Solution

The fourth proportional to 74,248.69, 111,361.20 and 21,645.88 is: 32,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,248.69 : 111,361.20 = 21,645.88 : x
  2. Step 2: Convert to fraction form
    74,248.69/111,361.20 = 21,645.88/x
  3. Step 3: Cross multiply
    74,248.69x = 111,361.20 × 21,645.88
  4. Step 4: Simplify right side
    74,248.69x = 2,410,511,171.86
  5. Step 5: Solve for x
    x = 2,410,511,171.86/74,248.69
  6. Step 6: Final answer
    x = 32,465.37

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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.