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Finding the Fourth Proportional to 66,704.79, 100,049.79 and 16,784.90

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Solution

The fourth proportional to 66,704.79, 100,049.79 and 16,784.90 is: 25,175.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,704.79 : 100,049.79 = 16,784.90 : x
  2. Step 2: Convert to fraction form
    66,704.79/100,049.79 = 16,784.90/x
  3. Step 3: Cross multiply
    66,704.79x = 100,049.79 × 16,784.90
  4. Step 4: Simplify right side
    66,704.79x = 1,679,325,219.92
  5. Step 5: Solve for x
    x = 1,679,325,219.92/66,704.79
  6. Step 6: Final answer
    x = 25,175.48

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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.