Home / 81,615.27-122,449.37-40,033.11

Finding the Fourth Proportional to 81,615.27, 122,449.37 and 40,033.11

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Solution

The fourth proportional to 81,615.27, 122,449.37 and 40,033.11 is: 60,062.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,615.27 : 122,449.37 = 40,033.11 : x
  2. Step 2: Convert to fraction form
    81,615.27/122,449.37 = 40,033.11/x
  3. Step 3: Cross multiply
    81,615.27x = 122,449.37 × 40,033.11
  4. Step 4: Simplify right side
    81,615.27x = 4,902,028,898.48
  5. Step 5: Solve for x
    x = 4,902,028,898.48/81,615.27
  6. Step 6: Final answer
    x = 60,062.64

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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.