Home / 66,149.53-99,237.96-21,778.94

Finding the Fourth Proportional to 66,149.53, 99,237.96 and 21,778.94

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Solution

The fourth proportional to 66,149.53, 99,237.96 and 21,778.94 is: 32,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,149.53 : 99,237.96 = 21,778.94 : x
  2. Step 2: Convert to fraction form
    66,149.53/99,237.96 = 21,778.94/x
  3. Step 3: Cross multiply
    66,149.53x = 99,237.96 × 21,778.94
  4. Step 4: Simplify right side
    66,149.53x = 2,161,297,824.66
  5. Step 5: Solve for x
    x = 2,161,297,824.66/66,149.53
  6. Step 6: Final answer
    x = 32,672.91

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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.