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Finding the Fourth Proportional to 80,943.39, 111,703.26 and 44,649

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Solution

The fourth proportional to 80,943.39, 111,703.26 and 44,649 is: 61,616.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,943.39 : 111,703.26 = 44,649 : x
  2. Step 2: Convert to fraction form
    80,943.39/111,703.26 = 44,649/x
  3. Step 3: Cross multiply
    80,943.39x = 111,703.26 × 44,649
  4. Step 4: Simplify right side
    80,943.39x = 4,987,438,855.74
  5. Step 5: Solve for x
    x = 4,987,438,855.74/80,943.39
  6. Step 6: Final answer
    x = 61,616.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.