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Finding the Fourth Proportional to 79,193.30, 109,286.80 and 43,384.62

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Solution

The fourth proportional to 79,193.30, 109,286.80 and 43,384.62 is: 59,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,193.30 : 109,286.80 = 43,384.62 : x
  2. Step 2: Convert to fraction form
    79,193.30/109,286.80 = 43,384.62/x
  3. Step 3: Cross multiply
    79,193.30x = 109,286.80 × 43,384.62
  4. Step 4: Simplify right side
    79,193.30x = 4,741,366,289.02
  5. Step 5: Solve for x
    x = 4,741,366,289.02/79,193.30
  6. Step 6: Final answer
    x = 59,870.80

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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.