Home / 81,562.32-122,260.82-55,269.72

Finding the Fourth Proportional to 81,562.32, 122,260.82 and 55,269.72

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Solution

The fourth proportional to 81,562.32, 122,260.82 and 55,269.72 is: 82,848.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,562.32 : 122,260.82 = 55,269.72 : x
  2. Step 2: Convert to fraction form
    81,562.32/122,260.82 = 55,269.72/x
  3. Step 3: Cross multiply
    81,562.32x = 122,260.82 × 55,269.72
  4. Step 4: Simplify right side
    81,562.32x = 6,757,321,288.37
  5. Step 5: Solve for x
    x = 6,757,321,288.37/81,562.32
  6. Step 6: Final answer
    x = 82,848.57

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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.