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Finding the Fourth Proportional to 90,480.54, 124,863 and 50,200.44

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Solution

The fourth proportional to 90,480.54, 124,863 and 50,200.44 is: 69,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,480.54 : 124,863 = 50,200.44 : x
  2. Step 2: Convert to fraction form
    90,480.54/124,863 = 50,200.44/x
  3. Step 3: Cross multiply
    90,480.54x = 124,863 × 50,200.44
  4. Step 4: Simplify right side
    90,480.54x = 6,268,177,539.72
  5. Step 5: Solve for x
    x = 6,268,177,539.72/90,480.54
  6. Step 6: Final answer
    x = 69,276.53

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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.