Home / 85,003.20-127,504.98-25,839.36

Finding the Fourth Proportional to 85,003.20, 127,504.98 and 25,839.36

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Solution

The fourth proportional to 85,003.20, 127,504.98 and 25,839.36 is: 38,759.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,003.20 : 127,504.98 = 25,839.36 : x
  2. Step 2: Convert to fraction form
    85,003.20/127,504.98 = 25,839.36/x
  3. Step 3: Cross multiply
    85,003.20x = 127,504.98 × 25,839.36
  4. Step 4: Simplify right side
    85,003.20x = 3,294,647,080.01
  5. Step 5: Solve for x
    x = 3,294,647,080.01/85,003.20
  6. Step 6: Final answer
    x = 38,759.09

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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.