Home / 86,238.88-129,355.44-30,833.44

Finding the Fourth Proportional to 86,238.88, 129,355.44 and 30,833.44

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Solution

The fourth proportional to 86,238.88, 129,355.44 and 30,833.44 is: 46,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,238.88 : 129,355.44 = 30,833.44 : x
  2. Step 2: Convert to fraction form
    86,238.88/129,355.44 = 30,833.44/x
  3. Step 3: Cross multiply
    86,238.88x = 129,355.44 × 30,833.44
  4. Step 4: Simplify right side
    86,238.88x = 3,988,473,197.91
  5. Step 5: Solve for x
    x = 3,988,473,197.91/86,238.88
  6. Step 6: Final answer
    x = 46,249.13

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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.