Home / 91,170.04-136,768.68-31,995.30

Finding the Fourth Proportional to 91,170.04, 136,768.68 and 31,995.30

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Solution

The fourth proportional to 91,170.04, 136,768.68 and 31,995.30 is: 47,997.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,170.04 : 136,768.68 = 31,995.30 : x
  2. Step 2: Convert to fraction form
    91,170.04/136,768.68 = 31,995.30/x
  3. Step 3: Cross multiply
    91,170.04x = 136,768.68 × 31,995.30
  4. Step 4: Simplify right side
    91,170.04x = 4,375,954,947.20
  5. Step 5: Solve for x
    x = 4,375,954,947.20/91,170.04
  6. Step 6: Final answer
    x = 47,997.73

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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.