Home / 80,811.55-121,160.97-35,808.43

Finding the Fourth Proportional to 80,811.55, 121,160.97 and 35,808.43

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Solution

The fourth proportional to 80,811.55, 121,160.97 and 35,808.43 is: 53,687.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,811.55 : 121,160.97 = 35,808.43 : x
  2. Step 2: Convert to fraction form
    80,811.55/121,160.97 = 35,808.43/x
  3. Step 3: Cross multiply
    80,811.55x = 121,160.97 × 35,808.43
  4. Step 4: Simplify right side
    80,811.55x = 4,338,584,112.98
  5. Step 5: Solve for x
    x = 4,338,584,112.98/80,811.55
  6. Step 6: Final answer
    x = 53,687.67

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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.