Home / 78,799.28-108,723.58-48,164.54

Finding the Fourth Proportional to 78,799.28, 108,723.58 and 48,164.54

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Solution

The fourth proportional to 78,799.28, 108,723.58 and 48,164.54 is: 66,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,799.28 : 108,723.58 = 48,164.54 : x
  2. Step 2: Convert to fraction form
    78,799.28/108,723.58 = 48,164.54/x
  3. Step 3: Cross multiply
    78,799.28x = 108,723.58 × 48,164.54
  4. Step 4: Simplify right side
    78,799.28x = 5,236,621,217.85
  5. Step 5: Solve for x
    x = 5,236,621,217.85/78,799.28
  6. Step 6: Final answer
    x = 66,455.19

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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.