Home / 81,449.72-122,180.04-22,285.90

Finding the Fourth Proportional to 81,449.72, 122,180.04 and 22,285.90

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Solution

The fourth proportional to 81,449.72, 122,180.04 and 22,285.90 is: 33,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,449.72 : 122,180.04 = 22,285.90 : x
  2. Step 2: Convert to fraction form
    81,449.72/122,180.04 = 22,285.90/x
  3. Step 3: Cross multiply
    81,449.72x = 122,180.04 × 22,285.90
  4. Step 4: Simplify right side
    81,449.72x = 2,722,892,126.79
  5. Step 5: Solve for x
    x = 2,722,892,126.79/81,449.72
  6. Step 6: Final answer
    x = 33,430.34

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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.