Home / 81,722.41-122,590.69-22,558.10

Finding the Fourth Proportional to 81,722.41, 122,590.69 and 22,558.10

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Solution

The fourth proportional to 81,722.41, 122,590.69 and 22,558.10 is: 33,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,722.41 : 122,590.69 = 22,558.10 : x
  2. Step 2: Convert to fraction form
    81,722.41/122,590.69 = 22,558.10/x
  3. Step 3: Cross multiply
    81,722.41x = 122,590.69 × 22,558.10
  4. Step 4: Simplify right side
    81,722.41x = 2,765,412,374.74
  5. Step 5: Solve for x
    x = 2,765,412,374.74/81,722.41
  6. Step 6: Final answer
    x = 33,839.10

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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.