Home / 81,768.49-122,691.46-34,393.96

Finding the Fourth Proportional to 81,768.49, 122,691.46 and 34,393.96

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Solution

The fourth proportional to 81,768.49, 122,691.46 and 34,393.96 is: 51,607.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,768.49 : 122,691.46 = 34,393.96 : x
  2. Step 2: Convert to fraction form
    81,768.49/122,691.46 = 34,393.96/x
  3. Step 3: Cross multiply
    81,768.49x = 122,691.46 × 34,393.96
  4. Step 4: Simplify right side
    81,768.49x = 4,219,845,167.58
  5. Step 5: Solve for x
    x = 4,219,845,167.58/81,768.49
  6. Step 6: Final answer
    x = 51,607.23

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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.