Home / 81,346.48-121,999.80-33,961.96

Finding the Fourth Proportional to 81,346.48, 121,999.80 and 33,961.96

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Solution

The fourth proportional to 81,346.48, 121,999.80 and 33,961.96 is: 50,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,346.48 : 121,999.80 = 33,961.96 : x
  2. Step 2: Convert to fraction form
    81,346.48/121,999.80 = 33,961.96/x
  3. Step 3: Cross multiply
    81,346.48x = 121,999.80 × 33,961.96
  4. Step 4: Simplify right side
    81,346.48x = 4,143,352,378.72
  5. Step 5: Solve for x
    x = 4,143,352,378.72/81,346.48
  6. Step 6: Final answer
    x = 50,934.63

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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.