Home / 74,144.72-111,164.12-34,680.30

Finding the Fourth Proportional to 74,144.72, 111,164.12 and 34,680.30

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Solution

The fourth proportional to 74,144.72, 111,164.12 and 34,680.30 is: 51,995.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,144.72 : 111,164.12 = 34,680.30 : x
  2. Step 2: Convert to fraction form
    74,144.72/111,164.12 = 34,680.30/x
  3. Step 3: Cross multiply
    74,144.72x = 111,164.12 × 34,680.30
  4. Step 4: Simplify right side
    74,144.72x = 3,855,204,857.43
  5. Step 5: Solve for x
    x = 3,855,204,857.43/74,144.72
  6. Step 6: Final answer
    x = 51,995.68

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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.