Home / 81,736.84-122,652.65-34,348.20

Finding the Fourth Proportional to 81,736.84, 122,652.65 and 34,348.20

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Solution

The fourth proportional to 81,736.84, 122,652.65 and 34,348.20 is: 51,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,736.84 : 122,652.65 = 34,348.20 : x
  2. Step 2: Convert to fraction form
    81,736.84/122,652.65 = 34,348.20/x
  3. Step 3: Cross multiply
    81,736.84x = 122,652.65 × 34,348.20
  4. Step 4: Simplify right side
    81,736.84x = 4,212,897,752.73
  5. Step 5: Solve for x
    x = 4,212,897,752.73/81,736.84
  6. Step 6: Final answer
    x = 51,542.21

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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.