Home / 79,120.56-109,151.64-47,273.52

Finding the Fourth Proportional to 79,120.56, 109,151.64 and 47,273.52

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Solution

The fourth proportional to 79,120.56, 109,151.64 and 47,273.52 is: 65,216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,120.56 : 109,151.64 = 47,273.52 : x
  2. Step 2: Convert to fraction form
    79,120.56/109,151.64 = 47,273.52/x
  3. Step 3: Cross multiply
    79,120.56x = 109,151.64 × 47,273.52
  4. Step 4: Simplify right side
    79,120.56x = 5,159,982,236.57
  5. Step 5: Solve for x
    x = 5,159,982,236.57/79,120.56
  6. Step 6: Final answer
    x = 65,216.71

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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.