Home / 81,060.48-121,538.08-33,662.56

Finding the Fourth Proportional to 81,060.48, 121,538.08 and 33,662.56

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Solution

The fourth proportional to 81,060.48, 121,538.08 and 33,662.56 is: 50,471.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,060.48 : 121,538.08 = 33,662.56 : x
  2. Step 2: Convert to fraction form
    81,060.48/121,538.08 = 33,662.56/x
  3. Step 3: Cross multiply
    81,060.48x = 121,538.08 × 33,662.56
  4. Step 4: Simplify right side
    81,060.48x = 4,091,282,910.28
  5. Step 5: Solve for x
    x = 4,091,282,910.28/81,060.48
  6. Step 6: Final answer
    x = 50,471.98

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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.