Home / 80,867.87-121,260.39-43,459.44

Finding the Fourth Proportional to 80,867.87, 121,260.39 and 43,459.44

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Solution

The fourth proportional to 80,867.87, 121,260.39 and 43,459.44 is: 65,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,867.87 : 121,260.39 = 43,459.44 : x
  2. Step 2: Convert to fraction form
    80,867.87/121,260.39 = 43,459.44/x
  3. Step 3: Cross multiply
    80,867.87x = 121,260.39 × 43,459.44
  4. Step 4: Simplify right side
    80,867.87x = 5,269,908,270.34
  5. Step 5: Solve for x
    x = 5,269,908,270.34/80,867.87
  6. Step 6: Final answer
    x = 65,166.90

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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.