Home / 51,078.56-70,498.11-31,967.21

Finding the Fourth Proportional to 51,078.56, 70,498.11 and 31,967.21

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Solution

The fourth proportional to 51,078.56, 70,498.11 and 31,967.21 is: 44,120.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,078.56 : 70,498.11 = 31,967.21 : x
  2. Step 2: Convert to fraction form
    51,078.56/70,498.11 = 31,967.21/x
  3. Step 3: Cross multiply
    51,078.56x = 70,498.11 × 31,967.21
  4. Step 4: Simplify right side
    51,078.56x = 2,253,628,183.10
  5. Step 5: Solve for x
    x = 2,253,628,183.10/51,078.56
  6. Step 6: Final answer
    x = 44,120.83

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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.