Home / 78,819.62-108,771.08-50,525.33

Finding the Fourth Proportional to 78,819.62, 108,771.08 and 50,525.33

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Solution

The fourth proportional to 78,819.62, 108,771.08 and 50,525.33 is: 69,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,819.62 : 108,771.08 = 50,525.33 : x
  2. Step 2: Convert to fraction form
    78,819.62/108,771.08 = 50,525.33/x
  3. Step 3: Cross multiply
    78,819.62x = 108,771.08 × 50,525.33
  4. Step 4: Simplify right side
    78,819.62x = 5,495,693,914.97
  5. Step 5: Solve for x
    x = 5,495,693,914.97/78,819.62
  6. Step 6: Final answer
    x = 69,724.95

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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.