Home / 80,305.28-120,477.06-27,715.22

Finding the Fourth Proportional to 80,305.28, 120,477.06 and 27,715.22

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Solution

The fourth proportional to 80,305.28, 120,477.06 and 27,715.22 is: 41,579.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,305.28 : 120,477.06 = 27,715.22 : x
  2. Step 2: Convert to fraction form
    80,305.28/120,477.06 = 27,715.22/x
  3. Step 3: Cross multiply
    80,305.28x = 120,477.06 × 27,715.22
  4. Step 4: Simplify right side
    80,305.28x = 3,339,048,222.85
  5. Step 5: Solve for x
    x = 3,339,048,222.85/80,305.28
  6. Step 6: Final answer
    x = 41,579.44

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1.5x scale

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.