Home / 74,519.31-111,778.96-21,928.81

Finding the Fourth Proportional to 74,519.31, 111,778.96 and 21,928.81

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Solution

The fourth proportional to 74,519.31, 111,778.96 and 21,928.81 is: 32,893.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,519.31 : 111,778.96 = 21,928.81 : x
  2. Step 2: Convert to fraction form
    74,519.31/111,778.96 = 21,928.81/x
  3. Step 3: Cross multiply
    74,519.31x = 111,778.96 × 21,928.81
  4. Step 4: Simplify right side
    74,519.31x = 2,451,179,575.84
  5. Step 5: Solve for x
    x = 2,451,179,575.84/74,519.31
  6. Step 6: Final answer
    x = 32,893.21

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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.