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Finding the Fourth Proportional to 66,175.80, 91,337 and 40,704.04

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Solution

The fourth proportional to 66,175.80, 91,337 and 40,704.04 is: 56,180.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,175.80 : 91,337 = 40,704.04 : x
  2. Step 2: Convert to fraction form
    66,175.80/91,337 = 40,704.04/x
  3. Step 3: Cross multiply
    66,175.80x = 91,337 × 40,704.04
  4. Step 4: Simplify right side
    66,175.80x = 3,717,784,901.48
  5. Step 5: Solve for x
    x = 3,717,784,901.48/66,175.80
  6. Step 6: Final answer
    x = 56,180.43

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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.