Home / 66,648.20-91,974.70-36,433.88

Finding the Fourth Proportional to 66,648.20, 91,974.70 and 36,433.88

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Solution

The fourth proportional to 66,648.20, 91,974.70 and 36,433.88 is: 50,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,648.20 : 91,974.70 = 36,433.88 : x
  2. Step 2: Convert to fraction form
    66,648.20/91,974.70 = 36,433.88/x
  3. Step 3: Cross multiply
    66,648.20x = 91,974.70 × 36,433.88
  4. Step 4: Simplify right side
    66,648.20x = 3,350,995,182.84
  5. Step 5: Solve for x
    x = 3,350,995,182.84/66,648.20
  6. Step 6: Final answer
    x = 50,278.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.