Home / 86,361.12-129,546.32-27,201.42

Finding the Fourth Proportional to 86,361.12, 129,546.32 and 27,201.42

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Solution

The fourth proportional to 86,361.12, 129,546.32 and 27,201.42 is: 40,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,361.12 : 129,546.32 = 27,201.42 : x
  2. Step 2: Convert to fraction form
    86,361.12/129,546.32 = 27,201.42/x
  3. Step 3: Cross multiply
    86,361.12x = 129,546.32 × 27,201.42
  4. Step 4: Simplify right side
    86,361.12x = 3,523,843,723.77
  5. Step 5: Solve for x
    x = 3,523,843,723.77/86,361.12
  6. Step 6: Final answer
    x = 40,803.59

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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.