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Finding the Fourth Proportional to 139,525.71, 209,288.55 and 41,029.71

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Solution

The fourth proportional to 139,525.71, 209,288.55 and 41,029.71 is: 61,544.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,525.71 : 209,288.55 = 41,029.71 : x
  2. Step 2: Convert to fraction form
    139,525.71/209,288.55 = 41,029.71/x
  3. Step 3: Cross multiply
    139,525.71x = 209,288.55 × 41,029.71
  4. Step 4: Simplify right side
    139,525.71x = 8,587,048,512.82
  5. Step 5: Solve for x
    x = 8,587,048,512.82/139,525.71
  6. Step 6: Final answer
    x = 61,544.56

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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.