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Finding the Fourth Proportional to 79,171.74, 109,252.83 and 43,360.98

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Solution

The fourth proportional to 79,171.74, 109,252.83 and 43,360.98 is: 59,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,171.74 : 109,252.83 = 43,360.98 : x
  2. Step 2: Convert to fraction form
    79,171.74/109,252.83 = 43,360.98/x
  3. Step 3: Cross multiply
    79,171.74x = 109,252.83 × 43,360.98
  4. Step 4: Simplify right side
    79,171.74x = 4,737,309,776.57
  5. Step 5: Solve for x
    x = 4,737,309,776.57/79,171.74
  6. Step 6: Final answer
    x = 59,835.87

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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.