Home / 81,070.96-121,634.38-33,711.48

Finding the Fourth Proportional to 81,070.96, 121,634.38 and 33,711.48

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Solution

The fourth proportional to 81,070.96, 121,634.38 and 33,711.48 is: 50,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,070.96 : 121,634.38 = 33,711.48 : x
  2. Step 2: Convert to fraction form
    81,070.96/121,634.38 = 33,711.48/x
  3. Step 3: Cross multiply
    81,070.96x = 121,634.38 × 33,711.48
  4. Step 4: Simplify right side
    81,070.96x = 4,100,474,968.68
  5. Step 5: Solve for x
    x = 4,100,474,968.68/81,070.96
  6. Step 6: Final answer
    x = 50,578.84

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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.