Home / 79,532.20-109,749.36-45,540.64

Finding the Fourth Proportional to 79,532.20, 109,749.36 and 45,540.64

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Solution

The fourth proportional to 79,532.20, 109,749.36 and 45,540.64 is: 62,843.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,532.20 : 109,749.36 = 45,540.64 : x
  2. Step 2: Convert to fraction form
    79,532.20/109,749.36 = 45,540.64/x
  3. Step 3: Cross multiply
    79,532.20x = 109,749.36 × 45,540.64
  4. Step 4: Simplify right side
    79,532.20x = 4,998,056,093.99
  5. Step 5: Solve for x
    x = 4,998,056,093.99/79,532.20
  6. Step 6: Final answer
    x = 62,843.18

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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.