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Finding the Fourth Proportional to 85,067.82, 127,609.02 and 25,904.07

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Solution

The fourth proportional to 85,067.82, 127,609.02 and 25,904.07 is: 38,858.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,067.82 : 127,609.02 = 25,904.07 : x
  2. Step 2: Convert to fraction form
    85,067.82/127,609.02 = 25,904.07/x
  3. Step 3: Cross multiply
    85,067.82x = 127,609.02 × 25,904.07
  4. Step 4: Simplify right side
    85,067.82x = 3,305,592,986.71
  5. Step 5: Solve for x
    x = 3,305,592,986.71/85,067.82
  6. Step 6: Final answer
    x = 38,858.32

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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.