Home / 79,427.76-109,610.46-43,620.12

Finding the Fourth Proportional to 79,427.76, 109,610.46 and 43,620.12

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Solution

The fourth proportional to 79,427.76, 109,610.46 and 43,620.12 is: 60,195.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,427.76 : 109,610.46 = 43,620.12 : x
  2. Step 2: Convert to fraction form
    79,427.76/109,610.46 = 43,620.12/x
  3. Step 3: Cross multiply
    79,427.76x = 109,610.46 × 43,620.12
  4. Step 4: Simplify right side
    79,427.76x = 4,781,221,418.46
  5. Step 5: Solve for x
    x = 4,781,221,418.46/79,427.76
  6. Step 6: Final answer
    x = 60,195.85

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1.5x scale

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.