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Finding the Fourth Proportional to 50,789.92, 70,024.96 and 39,440.16

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Solution

The fourth proportional to 50,789.92, 70,024.96 and 39,440.16 is: 54,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,789.92 : 70,024.96 = 39,440.16 : x
  2. Step 2: Convert to fraction form
    50,789.92/70,024.96 = 39,440.16/x
  3. Step 3: Cross multiply
    50,789.92x = 70,024.96 × 39,440.16
  4. Step 4: Simplify right side
    50,789.92x = 2,761,795,626.39
  5. Step 5: Solve for x
    x = 2,761,795,626.39/50,789.92
  6. Step 6: Final answer
    x = 54,376.85

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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.