Home / 81,799.05-122,701.30-22,629.76

Finding the Fourth Proportional to 81,799.05, 122,701.30 and 22,629.76

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Solution

The fourth proportional to 81,799.05, 122,701.30 and 22,629.76 is: 33,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,799.05 : 122,701.30 = 22,629.76 : x
  2. Step 2: Convert to fraction form
    81,799.05/122,701.30 = 22,629.76/x
  3. Step 3: Cross multiply
    81,799.05x = 122,701.30 × 22,629.76
  4. Step 4: Simplify right side
    81,799.05x = 2,776,701,424.85
  5. Step 5: Solve for x
    x = 2,776,701,424.85/81,799.05
  6. Step 6: Final answer
    x = 33,945.40

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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.