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Finding the Fourth Proportional to 90,017.92, 135,025.14 and 26,880.83

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Solution

The fourth proportional to 90,017.92, 135,025.14 and 26,880.83 is: 40,320.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,017.92 : 135,025.14 = 26,880.83 : x
  2. Step 2: Convert to fraction form
    90,017.92/135,025.14 = 26,880.83/x
  3. Step 3: Cross multiply
    90,017.92x = 135,025.14 × 26,880.83
  4. Step 4: Simplify right side
    90,017.92x = 3,629,587,766.09
  5. Step 5: Solve for x
    x = 3,629,587,766.09/90,017.92
  6. Step 6: Final answer
    x = 40,320.72

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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.