Home / 79,789.28-110,104.20-43,977.32

Finding the Fourth Proportional to 79,789.28, 110,104.20 and 43,977.32

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Solution

The fourth proportional to 79,789.28, 110,104.20 and 43,977.32 is: 60,685.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,789.28 : 110,104.20 = 43,977.32 : x
  2. Step 2: Convert to fraction form
    79,789.28/110,104.20 = 43,977.32/x
  3. Step 3: Cross multiply
    79,789.28x = 110,104.20 × 43,977.32
  4. Step 4: Simplify right side
    79,789.28x = 4,842,087,636.74
  5. Step 5: Solve for x
    x = 4,842,087,636.74/79,789.28
  6. Step 6: Final answer
    x = 60,685.94

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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.