Home / 85,164.48-127,768.32-25,997.76

Finding the Fourth Proportional to 85,164.48, 127,768.32 and 25,997.76

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Solution

The fourth proportional to 85,164.48, 127,768.32 and 25,997.76 is: 39,003.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,164.48 : 127,768.32 = 25,997.76 : x
  2. Step 2: Convert to fraction form
    85,164.48/127,768.32 = 25,997.76/x
  3. Step 3: Cross multiply
    85,164.48x = 127,768.32 × 25,997.76
  4. Step 4: Simplify right side
    85,164.48x = 3,321,690,118.96
  5. Step 5: Solve for x
    x = 3,321,690,118.96/85,164.48
  6. Step 6: Final answer
    x = 39,003.23

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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.