Home / 85,178.12-127,786.62-26,022.20

Finding the Fourth Proportional to 85,178.12, 127,786.62 and 26,022.20

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Solution

The fourth proportional to 85,178.12, 127,786.62 and 26,022.20 is: 39,039.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,178.12 : 127,786.62 = 26,022.20 : x
  2. Step 2: Convert to fraction form
    85,178.12/127,786.62 = 26,022.20/x
  3. Step 3: Cross multiply
    85,178.12x = 127,786.62 × 26,022.20
  4. Step 4: Simplify right side
    85,178.12x = 3,325,288,982.96
  5. Step 5: Solve for x
    x = 3,325,288,982.96/85,178.12
  6. Step 6: Final answer
    x = 39,039.24

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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.