Home / 81,799.62-122,713.29-25,628.82

Finding the Fourth Proportional to 81,799.62, 122,713.29 and 25,628.82

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Solution

The fourth proportional to 81,799.62, 122,713.29 and 25,628.82 is: 38,447.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,799.62 : 122,713.29 = 25,628.82 : x
  2. Step 2: Convert to fraction form
    81,799.62/122,713.29 = 25,628.82/x
  3. Step 3: Cross multiply
    81,799.62x = 122,713.29 × 25,628.82
  4. Step 4: Simplify right side
    81,799.62x = 3,144,996,821.02
  5. Step 5: Solve for x
    x = 3,144,996,821.02/81,799.62
  6. Step 6: Final answer
    x = 38,447.57

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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.