Home / 57,170.31-85,769.09-19,730.71

Finding the Fourth Proportional to 57,170.31, 85,769.09 and 19,730.71

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Solution

The fourth proportional to 57,170.31, 85,769.09 and 19,730.71 is: 29,600.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,170.31 : 85,769.09 = 19,730.71 : x
  2. Step 2: Convert to fraction form
    57,170.31/85,769.09 = 19,730.71/x
  3. Step 3: Cross multiply
    57,170.31x = 85,769.09 × 19,730.71
  4. Step 4: Simplify right side
    57,170.31x = 1,692,284,641.85
  5. Step 5: Solve for x
    x = 1,692,284,641.85/57,170.31
  6. Step 6: Final answer
    x = 29,600.76

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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.