Home / 267,629.37-401,444.19-80,640.87

Finding the Fourth Proportional to 267,629.37, 401,444.19 and 80,640.87

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Solution

The fourth proportional to 267,629.37, 401,444.19 and 80,640.87 is: 120,961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,629.37 : 401,444.19 = 80,640.87 : x
  2. Step 2: Convert to fraction form
    267,629.37/401,444.19 = 80,640.87/x
  3. Step 3: Cross multiply
    267,629.37x = 401,444.19 × 80,640.87
  4. Step 4: Simplify right side
    267,629.37x = 32,372,808,738.05
  5. Step 5: Solve for x
    x = 32,372,808,738.05/267,629.37
  6. Step 6: Final answer
    x = 120,961.35

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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.