Home / 57,156.71-85,711.60-17,161.72

Finding the Fourth Proportional to 57,156.71, 85,711.60 and 17,161.72

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Solution

The fourth proportional to 57,156.71, 85,711.60 and 17,161.72 is: 25,735.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,156.71 : 85,711.60 = 17,161.72 : x
  2. Step 2: Convert to fraction form
    57,156.71/85,711.60 = 17,161.72/x
  3. Step 3: Cross multiply
    57,156.71x = 85,711.60 × 17,161.72
  4. Step 4: Simplify right side
    57,156.71x = 1,470,958,222.77
  5. Step 5: Solve for x
    x = 1,470,958,222.77/57,156.71
  6. Step 6: Final answer
    x = 25,735.53

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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.