Home / 86,028.11-128,992.55-33,376.08

Finding the Fourth Proportional to 86,028.11, 128,992.55 and 33,376.08

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Solution

The fourth proportional to 86,028.11, 128,992.55 and 33,376.08 is: 50,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,028.11 : 128,992.55 = 33,376.08 : x
  2. Step 2: Convert to fraction form
    86,028.11/128,992.55 = 33,376.08/x
  3. Step 3: Cross multiply
    86,028.11x = 128,992.55 × 33,376.08
  4. Step 4: Simplify right side
    86,028.11x = 4,305,265,501.32
  5. Step 5: Solve for x
    x = 4,305,265,501.32/86,028.11
  6. Step 6: Final answer
    x = 50,044.87

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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.