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Finding the Fourth Proportional to 80,874.84, 111,604.32 and 45,062.98

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Solution

The fourth proportional to 80,874.84, 111,604.32 and 45,062.98 is: 62,185.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,874.84 : 111,604.32 = 45,062.98 : x
  2. Step 2: Convert to fraction form
    80,874.84/111,604.32 = 45,062.98/x
  3. Step 3: Cross multiply
    80,874.84x = 111,604.32 × 45,062.98
  4. Step 4: Simplify right side
    80,874.84x = 5,029,223,240.07
  5. Step 5: Solve for x
    x = 5,029,223,240.07/80,874.84
  6. Step 6: Final answer
    x = 62,185.26

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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.