Home / 80,856.72-121,292.64-27,530.84

Finding the Fourth Proportional to 80,856.72, 121,292.64 and 27,530.84

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Solution

The fourth proportional to 80,856.72, 121,292.64 and 27,530.84 is: 41,298.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,856.72 : 121,292.64 = 27,530.84 : x
  2. Step 2: Convert to fraction form
    80,856.72/121,292.64 = 27,530.84/x
  3. Step 3: Cross multiply
    80,856.72x = 121,292.64 × 27,530.84
  4. Step 4: Simplify right side
    80,856.72x = 3,339,288,568.25
  5. Step 5: Solve for x
    x = 3,339,288,568.25/80,856.72
  6. Step 6: Final answer
    x = 41,298.84

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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.