Home / 80,993.19-121,375.61-38,253.06

Finding the Fourth Proportional to 80,993.19, 121,375.61 and 38,253.06

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Solution

The fourth proportional to 80,993.19, 121,375.61 and 38,253.06 is: 57,325.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,993.19 : 121,375.61 = 38,253.06 : x
  2. Step 2: Convert to fraction form
    80,993.19/121,375.61 = 38,253.06/x
  3. Step 3: Cross multiply
    80,993.19x = 121,375.61 × 38,253.06
  4. Step 4: Simplify right side
    80,993.19x = 4,642,988,659.22
  5. Step 5: Solve for x
    x = 4,642,988,659.22/80,993.19
  6. Step 6: Final answer
    x = 57,325.67

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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.