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Finding the Fourth Proportional to 66,764.79, 100,144.53 and 16,844.22

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Solution

The fourth proportional to 66,764.79, 100,144.53 and 16,844.22 is: 25,265.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,764.79 : 100,144.53 = 16,844.22 : x
  2. Step 2: Convert to fraction form
    66,764.79/100,144.53 = 16,844.22/x
  3. Step 3: Cross multiply
    66,764.79x = 100,144.53 × 16,844.22
  4. Step 4: Simplify right side
    66,764.79x = 1,686,856,495.12
  5. Step 5: Solve for x
    x = 1,686,856,495.12/66,764.79
  6. Step 6: Final answer
    x = 25,265.66

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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.