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Finding the Fourth Proportional to 81,880.74, 122,566.86 and 44,347.59

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Solution

The fourth proportional to 81,880.74, 122,566.86 and 44,347.59 is: 66,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,880.74 : 122,566.86 = 44,347.59 : x
  2. Step 2: Convert to fraction form
    81,880.74/122,566.86 = 44,347.59/x
  3. Step 3: Cross multiply
    81,880.74x = 122,566.86 × 44,347.59
  4. Step 4: Simplify right side
    81,880.74x = 5,435,544,854.87
  5. Step 5: Solve for x
    x = 5,435,544,854.87/81,880.74
  6. Step 6: Final answer
    x = 66,383.68

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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.