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Finding the Fourth Proportional to 84,015.60, 126,035.40 and 24,843.60

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Solution

The fourth proportional to 84,015.60, 126,035.40 and 24,843.60 is: 37,268.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,015.60 : 126,035.40 = 24,843.60 : x
  2. Step 2: Convert to fraction form
    84,015.60/126,035.40 = 24,843.60/x
  3. Step 3: Cross multiply
    84,015.60x = 126,035.40 × 24,843.60
  4. Step 4: Simplify right side
    84,015.60x = 3,131,173,063.44
  5. Step 5: Solve for x
    x = 3,131,173,063.44/84,015.60
  6. Step 6: Final answer
    x = 37,268.95

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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.