Home / 87,997.17-121,427.10-54,007.08

Finding the Fourth Proportional to 87,997.17, 121,427.10 and 54,007.08

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Solution

The fourth proportional to 87,997.17, 121,427.10 and 54,007.08 is: 74,524.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,997.17 : 121,427.10 = 54,007.08 : x
  2. Step 2: Convert to fraction form
    87,997.17/121,427.10 = 54,007.08/x
  3. Step 3: Cross multiply
    87,997.17x = 121,427.10 × 54,007.08
  4. Step 4: Simplify right side
    87,997.17x = 6,557,923,103.87
  5. Step 5: Solve for x
    x = 6,557,923,103.87/87,997.17
  6. Step 6: Final answer
    x = 74,524.25

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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.