Home / 74,409.22-111,612.39-21,817.54

Finding the Fourth Proportional to 74,409.22, 111,612.39 and 21,817.54

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Solution

The fourth proportional to 74,409.22, 111,612.39 and 21,817.54 is: 32,725.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,409.22 : 111,612.39 = 21,817.54 : x
  2. Step 2: Convert to fraction form
    74,409.22/111,612.39 = 21,817.54/x
  3. Step 3: Cross multiply
    74,409.22x = 111,612.39 × 21,817.54
  4. Step 4: Simplify right side
    74,409.22x = 2,435,107,783.32
  5. Step 5: Solve for x
    x = 2,435,107,783.32/74,409.22
  6. Step 6: Final answer
    x = 32,725.89

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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.