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Finding the Fourth Proportional to 51,414.40, 70,943.88 and 29,908.88

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Solution

The fourth proportional to 51,414.40, 70,943.88 and 29,908.88 is: 41,269.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,414.40 : 70,943.88 = 29,908.88 : x
  2. Step 2: Convert to fraction form
    51,414.40/70,943.88 = 29,908.88/x
  3. Step 3: Cross multiply
    51,414.40x = 70,943.88 × 29,908.88
  4. Step 4: Simplify right side
    51,414.40x = 2,121,851,993.65
  5. Step 5: Solve for x
    x = 2,121,851,993.65/51,414.40
  6. Step 6: Final answer
    x = 41,269.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.