Home / 55,355.06-82,961.31-20,252.90

Finding the Fourth Proportional to 55,355.06, 82,961.31 and 20,252.90

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Solution

The fourth proportional to 55,355.06, 82,961.31 and 20,252.90 is: 30,353.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,355.06 : 82,961.31 = 20,252.90 : x
  2. Step 2: Convert to fraction form
    55,355.06/82,961.31 = 20,252.90/x
  3. Step 3: Cross multiply
    55,355.06x = 82,961.31 × 20,252.90
  4. Step 4: Simplify right side
    55,355.06x = 1,680,207,115.30
  5. Step 5: Solve for x
    x = 1,680,207,115.30/55,355.06
  6. Step 6: Final answer
    x = 30,353.27

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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.