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Finding the Fourth Proportional to 57,145.89, 85,717.90 and 15,592.89

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Solution

The fourth proportional to 57,145.89, 85,717.90 and 15,592.89 is: 23,389.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,145.89 : 85,717.90 = 15,592.89 : x
  2. Step 2: Convert to fraction form
    57,145.89/85,717.90 = 15,592.89/x
  3. Step 3: Cross multiply
    57,145.89x = 85,717.90 × 15,592.89
  4. Step 4: Simplify right side
    57,145.89x = 1,336,589,785.73
  5. Step 5: Solve for x
    x = 1,336,589,785.73/57,145.89
  6. Step 6: Final answer
    x = 23,389.08

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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.