Home / 271,986.21-407,979.24-84,997.71

Finding the Fourth Proportional to 271,986.21, 407,979.24 and 84,997.71

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Solution

The fourth proportional to 271,986.21, 407,979.24 and 84,997.71 is: 127,496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,986.21 : 407,979.24 = 84,997.71 : x
  2. Step 2: Convert to fraction form
    271,986.21/407,979.24 = 84,997.71/x
  3. Step 3: Cross multiply
    271,986.21x = 407,979.24 × 84,997.71
  4. Step 4: Simplify right side
    271,986.21x = 34,677,301,127.54
  5. Step 5: Solve for x
    x = 34,677,301,127.54/271,986.21
  6. Step 6: Final answer
    x = 127,496.54

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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.