Home / 85,174.12-127,780.62-26,018.20

Finding the Fourth Proportional to 85,174.12, 127,780.62 and 26,018.20

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Solution

The fourth proportional to 85,174.12, 127,780.62 and 26,018.20 is: 39,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,174.12 : 127,780.62 = 26,018.20 : x
  2. Step 2: Convert to fraction form
    85,174.12/127,780.62 = 26,018.20/x
  3. Step 3: Cross multiply
    85,174.12x = 127,780.62 × 26,018.20
  4. Step 4: Simplify right side
    85,174.12x = 3,324,621,727.28
  5. Step 5: Solve for x
    x = 3,324,621,727.28/85,174.12
  6. Step 6: Final answer
    x = 39,033.24

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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.