Home / 57,196.89-85,781.67-19,758.30

Finding the Fourth Proportional to 57,196.89, 85,781.67 and 19,758.30

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Solution

The fourth proportional to 57,196.89, 85,781.67 and 19,758.30 is: 29,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,196.89 : 85,781.67 = 19,758.30 : x
  2. Step 2: Convert to fraction form
    57,196.89/85,781.67 = 19,758.30/x
  3. Step 3: Cross multiply
    57,196.89x = 85,781.67 × 19,758.30
  4. Step 4: Simplify right side
    57,196.89x = 1,694,899,970.36
  5. Step 5: Solve for x
    x = 1,694,899,970.36/57,196.89
  6. Step 6: Final answer
    x = 29,632.73

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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.