Home / 81,346.38-121,999.66-33,961.87

Finding the Fourth Proportional to 81,346.38, 121,999.66 and 33,961.87

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Solution

The fourth proportional to 81,346.38, 121,999.66 and 33,961.87 is: 50,934.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,346.38 : 121,999.66 = 33,961.87 : x
  2. Step 2: Convert to fraction form
    81,346.38/121,999.66 = 33,961.87/x
  3. Step 3: Cross multiply
    81,346.38x = 121,999.66 × 33,961.87
  4. Step 4: Simplify right side
    81,346.38x = 4,143,336,165.35
  5. Step 5: Solve for x
    x = 4,143,336,165.35/81,346.38
  6. Step 6: Final answer
    x = 50,934.49

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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.