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Finding the Fourth Proportional to 66,927.44, 100,391.16 and 20,177.84

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Solution

The fourth proportional to 66,927.44, 100,391.16 and 20,177.84 is: 30,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,927.44 : 100,391.16 = 20,177.84 : x
  2. Step 2: Convert to fraction form
    66,927.44/100,391.16 = 20,177.84/x
  3. Step 3: Cross multiply
    66,927.44x = 100,391.16 × 20,177.84
  4. Step 4: Simplify right side
    66,927.44x = 2,025,676,763.89
  5. Step 5: Solve for x
    x = 2,025,676,763.89/66,927.44
  6. Step 6: Final answer
    x = 30,266.76

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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.