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Finding the Fourth Proportional to 90,201.92, 135,262.88 and 48,074.15

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Solution

The fourth proportional to 90,201.92, 135,262.88 and 48,074.15 is: 72,089.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,201.92 : 135,262.88 = 48,074.15 : x
  2. Step 2: Convert to fraction form
    90,201.92/135,262.88 = 48,074.15/x
  3. Step 3: Cross multiply
    90,201.92x = 135,262.88 × 48,074.15
  4. Step 4: Simplify right side
    90,201.92x = 6,502,647,982.55
  5. Step 5: Solve for x
    x = 6,502,647,982.55/90,201.92
  6. Step 6: Final answer
    x = 72,089.91

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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.