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Finding the Fourth Proportional to 81,884.74, 122,572.86 and 44,351.60

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Solution

The fourth proportional to 81,884.74, 122,572.86 and 44,351.60 is: 66,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,884.74 : 122,572.86 = 44,351.60 : x
  2. Step 2: Convert to fraction form
    81,884.74/122,572.86 = 44,351.60/x
  3. Step 3: Cross multiply
    81,884.74x = 122,572.86 × 44,351.60
  4. Step 4: Simplify right side
    81,884.74x = 5,436,302,457.58
  5. Step 5: Solve for x
    x = 5,436,302,457.58/81,884.74
  6. Step 6: Final answer
    x = 66,389.69

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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.