Home / 80,416.13-120,539.01-27,057.29

Finding the Fourth Proportional to 80,416.13, 120,539.01 and 27,057.29

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Solution

The fourth proportional to 80,416.13, 120,539.01 and 27,057.29 is: 40,557.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,416.13 : 120,539.01 = 27,057.29 : x
  2. Step 2: Convert to fraction form
    80,416.13/120,539.01 = 27,057.29/x
  3. Step 3: Cross multiply
    80,416.13x = 120,539.01 × 27,057.29
  4. Step 4: Simplify right side
    80,416.13x = 3,261,458,949.88
  5. Step 5: Solve for x
    x = 3,261,458,949.88/80,416.13
  6. Step 6: Final answer
    x = 40,557.27

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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.