Home / 80,358.06-120,453.44-27,010.38

Finding the Fourth Proportional to 80,358.06, 120,453.44 and 27,010.38

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Solution

The fourth proportional to 80,358.06, 120,453.44 and 27,010.38 is: 40,487.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,358.06 : 120,453.44 = 27,010.38 : x
  2. Step 2: Convert to fraction form
    80,358.06/120,453.44 = 27,010.38/x
  3. Step 3: Cross multiply
    80,358.06x = 120,453.44 × 27,010.38
  4. Step 4: Simplify right side
    80,358.06x = 3,253,493,051.66
  5. Step 5: Solve for x
    x = 3,253,493,051.66/80,358.06
  6. Step 6: Final answer
    x = 40,487.45

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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.