Home / 80,397.12-120,462.56-27,777.36

Finding the Fourth Proportional to 80,397.12, 120,462.56 and 27,777.36

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Solution

The fourth proportional to 80,397.12, 120,462.56 and 27,777.36 is: 41,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,397.12 : 120,462.56 = 27,777.36 : x
  2. Step 2: Convert to fraction form
    80,397.12/120,462.56 = 27,777.36/x
  3. Step 3: Cross multiply
    80,397.12x = 120,462.56 × 27,777.36
  4. Step 4: Simplify right side
    80,397.12x = 3,346,131,895.64
  5. Step 5: Solve for x
    x = 3,346,131,895.64/80,397.12
  6. Step 6: Final answer
    x = 41,620.05

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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.