Home / 85,016.63-127,530.21-25,856.66

Finding the Fourth Proportional to 85,016.63, 127,530.21 and 25,856.66

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Solution

The fourth proportional to 85,016.63, 127,530.21 and 25,856.66 is: 38,786.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,016.63 : 127,530.21 = 25,856.66 : x
  2. Step 2: Convert to fraction form
    85,016.63/127,530.21 = 25,856.66/x
  3. Step 3: Cross multiply
    85,016.63x = 127,530.21 × 25,856.66
  4. Step 4: Simplify right side
    85,016.63x = 3,297,504,642.05
  5. Step 5: Solve for x
    x = 3,297,504,642.05/85,016.63
  6. Step 6: Final answer
    x = 38,786.59

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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.