Home / 87,028.94-120,090.89-51,216.82

Finding the Fourth Proportional to 87,028.94, 120,090.89 and 51,216.82

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Solution

The fourth proportional to 87,028.94, 120,090.89 and 51,216.82 is: 70,673.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,028.94 : 120,090.89 = 51,216.82 : x
  2. Step 2: Convert to fraction form
    87,028.94/120,090.89 = 51,216.82/x
  3. Step 3: Cross multiply
    87,028.94x = 120,090.89 × 51,216.82
  4. Step 4: Simplify right side
    87,028.94x = 6,150,673,324.58
  5. Step 5: Solve for x
    x = 6,150,673,324.58/87,028.94
  6. Step 6: Final answer
    x = 70,673.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.