Home / 57,147.77-85,727.31-19,702.93

Finding the Fourth Proportional to 57,147.77, 85,727.31 and 19,702.93

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Solution

The fourth proportional to 57,147.77, 85,727.31 and 19,702.93 is: 29,556.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,147.77 : 85,727.31 = 19,702.93 : x
  2. Step 2: Convert to fraction form
    57,147.77/85,727.31 = 19,702.93/x
  3. Step 3: Cross multiply
    57,147.77x = 85,727.31 × 19,702.93
  4. Step 4: Simplify right side
    57,147.77x = 1,689,078,660.87
  5. Step 5: Solve for x
    x = 1,689,078,660.87/57,147.77
  6. Step 6: Final answer
    x = 29,556.34

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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.