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Finding the Fourth Proportional to 90,260.87, 135,413.17 and 27,080.87

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Solution

The fourth proportional to 90,260.87, 135,413.17 and 27,080.87 is: 40,627.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,260.87 : 135,413.17 = 27,080.87 : x
  2. Step 2: Convert to fraction form
    90,260.87/135,413.17 = 27,080.87/x
  3. Step 3: Cross multiply
    90,260.87x = 135,413.17 × 27,080.87
  4. Step 4: Simplify right side
    90,260.87x = 3,667,105,708.29
  5. Step 5: Solve for x
    x = 3,667,105,708.29/90,260.87
  6. Step 6: Final answer
    x = 40,627.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.