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Finding the Fourth Proportional to 78,843.84, 118,190.56 and 26,216.48

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Solution

The fourth proportional to 78,843.84, 118,190.56 and 26,216.48 is: 39,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,843.84 : 118,190.56 = 26,216.48 : x
  2. Step 2: Convert to fraction form
    78,843.84/118,190.56 = 26,216.48/x
  3. Step 3: Cross multiply
    78,843.84x = 118,190.56 × 26,216.48
  4. Step 4: Simplify right side
    78,843.84x = 3,098,540,452.43
  5. Step 5: Solve for x
    x = 3,098,540,452.43/78,843.84
  6. Step 6: Final answer
    x = 39,299.72

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1.5x scale

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.