Home / 79,362.38-109,481.07-57,818.61

Finding the Fourth Proportional to 79,362.38, 109,481.07 and 57,818.61

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Solution

The fourth proportional to 79,362.38, 109,481.07 and 57,818.61 is: 79,761.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,362.38 : 109,481.07 = 57,818.61 : x
  2. Step 2: Convert to fraction form
    79,362.38/109,481.07 = 57,818.61/x
  3. Step 3: Cross multiply
    79,362.38x = 109,481.07 × 57,818.61
  4. Step 4: Simplify right side
    79,362.38x = 6,330,043,180.30
  5. Step 5: Solve for x
    x = 6,330,043,180.30/79,362.38
  6. Step 6: Final answer
    x = 79,761.25

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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.