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Finding the Fourth Proportional to 77,864.96, 107,469.28 and 50,960.96

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Solution

The fourth proportional to 77,864.96, 107,469.28 and 50,960.96 is: 70,336.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,864.96 : 107,469.28 = 50,960.96 : x
  2. Step 2: Convert to fraction form
    77,864.96/107,469.28 = 50,960.96/x
  3. Step 3: Cross multiply
    77,864.96x = 107,469.28 × 50,960.96
  4. Step 4: Simplify right side
    77,864.96x = 5,476,737,679.31
  5. Step 5: Solve for x
    x = 5,476,737,679.31/77,864.96
  6. Step 6: Final answer
    x = 70,336.36

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1.5x scale

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.