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Finding the Fourth Proportional to 79,917.30, 119,871.24 and 29,993.20

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Solution

The fourth proportional to 79,917.30, 119,871.24 and 29,993.20 is: 44,988.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,917.30 : 119,871.24 = 29,993.20 : x
  2. Step 2: Convert to fraction form
    79,917.30/119,871.24 = 29,993.20/x
  3. Step 3: Cross multiply
    79,917.30x = 119,871.24 × 29,993.20
  4. Step 4: Simplify right side
    79,917.30x = 3,595,322,506.40
  5. Step 5: Solve for x
    x = 3,595,322,506.40/79,917.30
  6. Step 6: Final answer
    x = 44,988.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.