Home / 81,167.28-121,645.44-33,079.74

Finding the Fourth Proportional to 81,167.28, 121,645.44 and 33,079.74

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Solution

The fourth proportional to 81,167.28, 121,645.44 and 33,079.74 is: 49,576.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,167.28 : 121,645.44 = 33,079.74 : x
  2. Step 2: Convert to fraction form
    81,167.28/121,645.44 = 33,079.74/x
  3. Step 3: Cross multiply
    81,167.28x = 121,645.44 × 33,079.74
  4. Step 4: Simplify right side
    81,167.28x = 4,023,999,527.39
  5. Step 5: Solve for x
    x = 4,023,999,527.39/81,167.28
  6. Step 6: Final answer
    x = 49,576.62

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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.