Home / 81,705.17-122,500.64-41,736.53

Finding the Fourth Proportional to 81,705.17, 122,500.64 and 41,736.53

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Solution

The fourth proportional to 81,705.17, 122,500.64 and 41,736.53 is: 62,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,705.17 : 122,500.64 = 41,736.53 : x
  2. Step 2: Convert to fraction form
    81,705.17/122,500.64 = 41,736.53/x
  3. Step 3: Cross multiply
    81,705.17x = 122,500.64 × 41,736.53
  4. Step 4: Simplify right side
    81,705.17x = 5,112,752,046.97
  5. Step 5: Solve for x
    x = 5,112,752,046.97/81,705.17
  6. Step 6: Final answer
    x = 62,575.62

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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.