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Finding the Fourth Proportional to 50,310, 69,410.12 and 30,173.40

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Solution

The fourth proportional to 50,310, 69,410.12 and 30,173.40 is: 41,628.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,310 : 69,410.12 = 30,173.40 : x
  2. Step 2: Convert to fraction form
    50,310/69,410.12 = 30,173.40/x
  3. Step 3: Cross multiply
    50,310x = 69,410.12 × 30,173.40
  4. Step 4: Simplify right side
    50,310x = 2,094,339,163.94
  5. Step 5: Solve for x
    x = 2,094,339,163.94/50,310
  6. Step 6: Final answer
    x = 41,628.69

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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.