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Finding the Fourth Proportional to 76,494.79, 105,528.84 and 50,976.29

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Solution

The fourth proportional to 76,494.79, 105,528.84 and 50,976.29 is: 70,324.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,494.79 : 105,528.84 = 50,976.29 : x
  2. Step 2: Convert to fraction form
    76,494.79/105,528.84 = 50,976.29/x
  3. Step 3: Cross multiply
    76,494.79x = 105,528.84 × 50,976.29
  4. Step 4: Simplify right side
    76,494.79x = 5,379,469,110.61
  5. Step 5: Solve for x
    x = 5,379,469,110.61/76,494.79
  6. Step 6: Final answer
    x = 70,324.65

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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.