Home / 80,181.24-120,270.64-27,591.16

Finding the Fourth Proportional to 80,181.24, 120,270.64 and 27,591.16

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Solution

The fourth proportional to 80,181.24, 120,270.64 and 27,591.16 is: 41,386.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,181.24 : 120,270.64 = 27,591.16 : x
  2. Step 2: Convert to fraction form
    80,181.24/120,270.64 = 27,591.16/x
  3. Step 3: Cross multiply
    80,181.24x = 120,270.64 × 27,591.16
  4. Step 4: Simplify right side
    80,181.24x = 3,318,406,471.54
  5. Step 5: Solve for x
    x = 3,318,406,471.54/80,181.24
  6. Step 6: Final answer
    x = 41,386.32

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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.