Home / 86,571.32-129,860.69-33,992.19

Finding the Fourth Proportional to 86,571.32, 129,860.69 and 33,992.19

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Solution

The fourth proportional to 86,571.32, 129,860.69 and 33,992.19 is: 50,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,571.32 : 129,860.69 = 33,992.19 : x
  2. Step 2: Convert to fraction form
    86,571.32/129,860.69 = 33,992.19/x
  3. Step 3: Cross multiply
    86,571.32x = 129,860.69 × 33,992.19
  4. Step 4: Simplify right side
    86,571.32x = 4,414,249,078.05
  5. Step 5: Solve for x
    x = 4,414,249,078.05/86,571.32
  6. Step 6: Final answer
    x = 50,989.74

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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.