Home / 75,845.16-113,766.82-19,680.26

Finding the Fourth Proportional to 75,845.16, 113,766.82 and 19,680.26

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Solution

The fourth proportional to 75,845.16, 113,766.82 and 19,680.26 is: 29,520.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,845.16 : 113,766.82 = 19,680.26 : x
  2. Step 2: Convert to fraction form
    75,845.16/113,766.82 = 19,680.26/x
  3. Step 3: Cross multiply
    75,845.16x = 113,766.82 × 19,680.26
  4. Step 4: Simplify right side
    75,845.16x = 2,238,960,596.97
  5. Step 5: Solve for x
    x = 2,238,960,596.97/75,845.16
  6. Step 6: Final answer
    x = 29,520.15

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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.