Home / 49,723.20-74,856.96-45,368.64

Finding the Fourth Proportional to 49,723.20, 74,856.96 and 45,368.64

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Solution

The fourth proportional to 49,723.20, 74,856.96 and 45,368.64 is: 68,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,723.20 : 74,856.96 = 45,368.64 : x
  2. Step 2: Convert to fraction form
    49,723.20/74,856.96 = 45,368.64/x
  3. Step 3: Cross multiply
    49,723.20x = 74,856.96 × 45,368.64
  4. Step 4: Simplify right side
    49,723.20x = 3,396,158,469.73
  5. Step 5: Solve for x
    x = 3,396,158,469.73/49,723.20
  6. Step 6: Final answer
    x = 68,301.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.