Home / 81,716.31-122,565.29-22,560.39

Finding the Fourth Proportional to 81,716.31, 122,565.29 and 22,560.39

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Solution

The fourth proportional to 81,716.31, 122,565.29 and 22,560.39 is: 33,838.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,716.31 : 122,565.29 = 22,560.39 : x
  2. Step 2: Convert to fraction form
    81,716.31/122,565.29 = 22,560.39/x
  3. Step 3: Cross multiply
    81,716.31x = 122,565.29 × 22,560.39
  4. Step 4: Simplify right side
    81,716.31x = 2,765,120,630.06
  5. Step 5: Solve for x
    x = 2,765,120,630.06/81,716.31
  6. Step 6: Final answer
    x = 33,838.05

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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.