Home / 81,840.06-122,735.85-35,081.82

Finding the Fourth Proportional to 81,840.06, 122,735.85 and 35,081.82

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Solution

The fourth proportional to 81,840.06, 122,735.85 and 35,081.82 is: 52,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,840.06 : 122,735.85 = 35,081.82 : x
  2. Step 2: Convert to fraction form
    81,840.06/122,735.85 = 35,081.82/x
  3. Step 3: Cross multiply
    81,840.06x = 122,735.85 × 35,081.82
  4. Step 4: Simplify right side
    81,840.06x = 4,305,796,997.25
  5. Step 5: Solve for x
    x = 4,305,796,997.25/81,840.06
  6. Step 6: Final answer
    x = 52,612.34

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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.