Home / 81,591.32-122,392.83-34,158.68

Finding the Fourth Proportional to 81,591.32, 122,392.83 and 34,158.68

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Solution

The fourth proportional to 81,591.32, 122,392.83 and 34,158.68 is: 51,240.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,591.32 : 122,392.83 = 34,158.68 : x
  2. Step 2: Convert to fraction form
    81,591.32/122,392.83 = 34,158.68/x
  3. Step 3: Cross multiply
    81,591.32x = 122,392.83 × 34,158.68
  4. Step 4: Simplify right side
    81,591.32x = 4,180,777,514.26
  5. Step 5: Solve for x
    x = 4,180,777,514.26/81,591.32
  6. Step 6: Final answer
    x = 51,240.47

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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.