Home / 80,162.13-120,259.59-27,564.78

Finding the Fourth Proportional to 80,162.13, 120,259.59 and 27,564.78

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Solution

The fourth proportional to 80,162.13, 120,259.59 and 27,564.78 is: 41,352.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,162.13 : 120,259.59 = 27,564.78 : x
  2. Step 2: Convert to fraction form
    80,162.13/120,259.59 = 27,564.78/x
  3. Step 3: Cross multiply
    80,162.13x = 120,259.59 × 27,564.78
  4. Step 4: Simplify right side
    80,162.13x = 3,314,929,141.24
  5. Step 5: Solve for x
    x = 3,314,929,141.24/80,162.13
  6. Step 6: Final answer
    x = 41,352.81

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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.