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Finding the Fourth Proportional to 80,351.88, 110,835.57 and 51,708.93

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Solution

The fourth proportional to 80,351.88, 110,835.57 and 51,708.93 is: 71,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,351.88 : 110,835.57 = 51,708.93 : x
  2. Step 2: Convert to fraction form
    80,351.88/110,835.57 = 51,708.93/x
  3. Step 3: Cross multiply
    80,351.88x = 110,835.57 × 51,708.93
  4. Step 4: Simplify right side
    80,351.88x = 5,731,188,730.64
  5. Step 5: Solve for x
    x = 5,731,188,730.64/80,351.88
  6. Step 6: Final answer
    x = 71,326.13

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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.