Home / 53,540.21-80,146.22-47,919.62

Finding the Fourth Proportional to 53,540.21, 80,146.22 and 47,919.62

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Solution

The fourth proportional to 53,540.21, 80,146.22 and 47,919.62 is: 71,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,540.21 : 80,146.22 = 47,919.62 : x
  2. Step 2: Convert to fraction form
    53,540.21/80,146.22 = 47,919.62/x
  3. Step 3: Cross multiply
    53,540.21x = 80,146.22 × 47,919.62
  4. Step 4: Simplify right side
    53,540.21x = 3,840,575,766.51
  5. Step 5: Solve for x
    x = 3,840,575,766.51/53,540.21
  6. Step 6: Final answer
    x = 71,732.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.