Home / 86,456.02-129,647.30-33,857.14

Finding the Fourth Proportional to 86,456.02, 129,647.30 and 33,857.14

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Solution

The fourth proportional to 86,456.02, 129,647.30 and 33,857.14 is: 50,771.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,456.02 : 129,647.30 = 33,857.14 : x
  2. Step 2: Convert to fraction form
    86,456.02/129,647.30 = 33,857.14/x
  3. Step 3: Cross multiply
    86,456.02x = 129,647.30 × 33,857.14
  4. Step 4: Simplify right side
    86,456.02x = 4,389,486,786.72
  5. Step 5: Solve for x
    x = 4,389,486,786.72/86,456.02
  6. Step 6: Final answer
    x = 50,771.33

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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.