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Finding the Fourth Proportional to 69,871.82, 104,831.65 and 29,874.32

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Solution

The fourth proportional to 69,871.82, 104,831.65 and 29,874.32 is: 44,821.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,871.82 : 104,831.65 = 29,874.32 : x
  2. Step 2: Convert to fraction form
    69,871.82/104,831.65 = 29,874.32/x
  3. Step 3: Cross multiply
    69,871.82x = 104,831.65 × 29,874.32
  4. Step 4: Simplify right side
    69,871.82x = 3,131,774,726.20
  5. Step 5: Solve for x
    x = 3,131,774,726.20/69,871.82
  6. Step 6: Final answer
    x = 44,821.71

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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.