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Finding the Fourth Proportional to 79,786.10, 110,107.28 and 45,800.80

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Solution

The fourth proportional to 79,786.10, 110,107.28 and 45,800.80 is: 63,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,786.10 : 110,107.28 = 45,800.80 : x
  2. Step 2: Convert to fraction form
    79,786.10/110,107.28 = 45,800.80/x
  3. Step 3: Cross multiply
    79,786.10x = 110,107.28 × 45,800.80
  4. Step 4: Simplify right side
    79,786.10x = 5,043,000,730.28
  5. Step 5: Solve for x
    x = 5,043,000,730.28/79,786.10
  6. Step 6: Final answer
    x = 63,206.51

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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.