Home / 81,453.14-122,104.52-56,504.96

Finding the Fourth Proportional to 81,453.14, 122,104.52 and 56,504.96

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Solution

The fourth proportional to 81,453.14, 122,104.52 and 56,504.96 is: 84,705.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,453.14 : 122,104.52 = 56,504.96 : x
  2. Step 2: Convert to fraction form
    81,453.14/122,104.52 = 56,504.96/x
  3. Step 3: Cross multiply
    81,453.14x = 122,104.52 × 56,504.96
  4. Step 4: Simplify right side
    81,453.14x = 6,899,511,018.42
  5. Step 5: Solve for x
    x = 6,899,511,018.42/81,453.14
  6. Step 6: Final answer
    x = 84,705.28

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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.