Home / 57,133.68-85,704.52-17,685.60

Finding the Fourth Proportional to 57,133.68, 85,704.52 and 17,685.60

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Solution

The fourth proportional to 57,133.68, 85,704.52 and 17,685.60 is: 26,529.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,133.68 : 85,704.52 = 17,685.60 : x
  2. Step 2: Convert to fraction form
    57,133.68/85,704.52 = 17,685.60/x
  3. Step 3: Cross multiply
    57,133.68x = 85,704.52 × 17,685.60
  4. Step 4: Simplify right side
    57,133.68x = 1,515,735,858.91
  5. Step 5: Solve for x
    x = 1,515,735,858.91/57,133.68
  6. Step 6: Final answer
    x = 26,529.64

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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.