Home / 85,016.25-127,529.64-25,856.28

Finding the Fourth Proportional to 85,016.25, 127,529.64 and 25,856.28

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Solution

The fourth proportional to 85,016.25, 127,529.64 and 25,856.28 is: 38,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,016.25 : 127,529.64 = 25,856.28 : x
  2. Step 2: Convert to fraction form
    85,016.25/127,529.64 = 25,856.28/x
  3. Step 3: Cross multiply
    85,016.25x = 127,529.64 × 25,856.28
  4. Step 4: Simplify right side
    85,016.25x = 3,297,442,080.14
  5. Step 5: Solve for x
    x = 3,297,442,080.14/85,016.25
  6. Step 6: Final answer
    x = 38,786.02

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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.