Home / 78,917.68-108,902.23-43,107.18

Finding the Fourth Proportional to 78,917.68, 108,902.23 and 43,107.18

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Solution

The fourth proportional to 78,917.68, 108,902.23 and 43,107.18 is: 59,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,917.68 : 108,902.23 = 43,107.18 : x
  2. Step 2: Convert to fraction form
    78,917.68/108,902.23 = 43,107.18/x
  3. Step 3: Cross multiply
    78,917.68x = 108,902.23 × 43,107.18
  4. Step 4: Simplify right side
    78,917.68x = 4,694,468,031.01
  5. Step 5: Solve for x
    x = 4,694,468,031.01/78,917.68
  6. Step 6: Final answer
    x = 59,485.63

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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.