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Finding the Fourth Proportional to 66,157.21, 91,297.59 and 35,942.77

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Solution

The fourth proportional to 66,157.21, 91,297.59 and 35,942.77 is: 49,601.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,157.21 : 91,297.59 = 35,942.77 : x
  2. Step 2: Convert to fraction form
    66,157.21/91,297.59 = 35,942.77/x
  3. Step 3: Cross multiply
    66,157.21x = 91,297.59 × 35,942.77
  4. Step 4: Simplify right side
    66,157.21x = 3,281,488,278.92
  5. Step 5: Solve for x
    x = 3,281,488,278.92/66,157.21
  6. Step 6: Final answer
    x = 49,601.37

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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.