Home / 86,005.68-129,016.66-33,419.22

Finding the Fourth Proportional to 86,005.68, 129,016.66 and 33,419.22

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Solution

The fourth proportional to 86,005.68, 129,016.66 and 33,419.22 is: 50,131.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,005.68 : 129,016.66 = 33,419.22 : x
  2. Step 2: Convert to fraction form
    86,005.68/129,016.66 = 33,419.22/x
  3. Step 3: Cross multiply
    86,005.68x = 129,016.66 × 33,419.22
  4. Step 4: Simplify right side
    86,005.68x = 4,311,636,144.21
  5. Step 5: Solve for x
    x = 4,311,636,144.21/86,005.68
  6. Step 6: Final answer
    x = 50,131.99

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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.