Home / 81,930.87-122,902.98-22,766.55

Finding the Fourth Proportional to 81,930.87, 122,902.98 and 22,766.55

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Solution

The fourth proportional to 81,930.87, 122,902.98 and 22,766.55 is: 34,151.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,930.87 : 122,902.98 = 22,766.55 : x
  2. Step 2: Convert to fraction form
    81,930.87/122,902.98 = 22,766.55/x
  3. Step 3: Cross multiply
    81,930.87x = 122,902.98 × 22,766.55
  4. Step 4: Simplify right side
    81,930.87x = 2,798,076,839.32
  5. Step 5: Solve for x
    x = 2,798,076,839.32/81,930.87
  6. Step 6: Final answer
    x = 34,151.68

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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.