Home / 81,199.75-121,785.24-22,040.02

Finding the Fourth Proportional to 81,199.75, 121,785.24 and 22,040.02

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Solution

The fourth proportional to 81,199.75, 121,785.24 and 22,040.02 is: 33,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,199.75 : 121,785.24 = 22,040.02 : x
  2. Step 2: Convert to fraction form
    81,199.75/121,785.24 = 22,040.02/x
  3. Step 3: Cross multiply
    81,199.75x = 121,785.24 × 22,040.02
  4. Step 4: Simplify right side
    81,199.75x = 2,684,149,125.30
  5. Step 5: Solve for x
    x = 2,684,149,125.30/81,199.75
  6. Step 6: Final answer
    x = 33,056.13

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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.