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Finding the Fourth Proportional to 50,270.64, 69,375.36 and 30,130.80

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Solution

The fourth proportional to 50,270.64, 69,375.36 and 30,130.80 is: 41,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,270.64 : 69,375.36 = 30,130.80 : x
  2. Step 2: Convert to fraction form
    50,270.64/69,375.36 = 30,130.80/x
  3. Step 3: Cross multiply
    50,270.64x = 69,375.36 × 30,130.80
  4. Step 4: Simplify right side
    50,270.64x = 2,090,335,097.09
  5. Step 5: Solve for x
    x = 2,090,335,097.09/50,270.64
  6. Step 6: Final answer
    x = 41,581.63

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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.