Home / 81,249.09-121,876.16-22,086.01

Finding the Fourth Proportional to 81,249.09, 121,876.16 and 22,086.01

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Solution

The fourth proportional to 81,249.09, 121,876.16 and 22,086.01 is: 33,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,249.09 : 121,876.16 = 22,086.01 : x
  2. Step 2: Convert to fraction form
    81,249.09/121,876.16 = 22,086.01/x
  3. Step 3: Cross multiply
    81,249.09x = 121,876.16 × 22,086.01
  4. Step 4: Simplify right side
    81,249.09x = 2,691,758,088.52
  5. Step 5: Solve for x
    x = 2,691,758,088.52/81,249.09
  6. Step 6: Final answer
    x = 33,129.70

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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.