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Finding the Fourth Proportional to 50,203.92, 69,273.48 and 28,979.28

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Solution

The fourth proportional to 50,203.92, 69,273.48 and 28,979.28 is: 39,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,203.92 : 69,273.48 = 28,979.28 : x
  2. Step 2: Convert to fraction form
    50,203.92/69,273.48 = 28,979.28/x
  3. Step 3: Cross multiply
    50,203.92x = 69,273.48 × 28,979.28
  4. Step 4: Simplify right side
    50,203.92x = 2,007,495,573.49
  5. Step 5: Solve for x
    x = 2,007,495,573.49/50,203.92
  6. Step 6: Final answer
    x = 39,986.83

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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.