Home / 86,568.21-129,910.64-33,971.49

Finding the Fourth Proportional to 86,568.21, 129,910.64 and 33,971.49

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Solution

The fourth proportional to 86,568.21, 129,910.64 and 33,971.49 is: 50,980.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,568.21 : 129,910.64 = 33,971.49 : x
  2. Step 2: Convert to fraction form
    86,568.21/129,910.64 = 33,971.49/x
  3. Step 3: Cross multiply
    86,568.21x = 129,910.64 × 33,971.49
  4. Step 4: Simplify right side
    86,568.21x = 4,413,257,837.80
  5. Step 5: Solve for x
    x = 4,413,257,837.80/86,568.21
  6. Step 6: Final answer
    x = 50,980.12

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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.