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Finding the Fourth Proportional to 50,138.89, 69,189.63 and 29,983.88

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Solution

The fourth proportional to 50,138.89, 69,189.63 and 29,983.88 is: 41,376.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,138.89 : 69,189.63 = 29,983.88 : x
  2. Step 2: Convert to fraction form
    50,138.89/69,189.63 = 29,983.88/x
  3. Step 3: Cross multiply
    50,138.89x = 69,189.63 × 29,983.88
  4. Step 4: Simplify right side
    50,138.89x = 2,074,573,563.16
  5. Step 5: Solve for x
    x = 2,074,573,563.16/50,138.89
  6. Step 6: Final answer
    x = 41,376.54

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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.