Home / 39,160.45-58,750.68-12,865.42

Finding the Fourth Proportional to 39,160.45, 58,750.68 and 12,865.42

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Solution

The fourth proportional to 39,160.45, 58,750.68 and 12,865.42 is: 19,301.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,160.45 : 58,750.68 = 12,865.42 : x
  2. Step 2: Convert to fraction form
    39,160.45/58,750.68 = 12,865.42/x
  3. Step 3: Cross multiply
    39,160.45x = 58,750.68 × 12,865.42
  4. Step 4: Simplify right side
    39,160.45x = 755,851,879.73
  5. Step 5: Solve for x
    x = 755,851,879.73/39,160.45
  6. Step 6: Final answer
    x = 19,301.41

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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.