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Finding the Fourth Proportional to 79,450.88, 109,644.11 and 43,641.64

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Solution

The fourth proportional to 79,450.88, 109,644.11 and 43,641.64 is: 60,226.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,450.88 : 109,644.11 = 43,641.64 : x
  2. Step 2: Convert to fraction form
    79,450.88/109,644.11 = 43,641.64/x
  3. Step 3: Cross multiply
    79,450.88x = 109,644.11 × 43,641.64
  4. Step 4: Simplify right side
    79,450.88x = 4,785,049,146.65
  5. Step 5: Solve for x
    x = 4,785,049,146.65/79,450.88
  6. Step 6: Final answer
    x = 60,226.51

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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.