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Finding the Fourth Proportional to 85,990.54, 118,660.44 and 48,257.50

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Solution

The fourth proportional to 85,990.54, 118,660.44 and 48,257.50 is: 66,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,990.54 : 118,660.44 = 48,257.50 : x
  2. Step 2: Convert to fraction form
    85,990.54/118,660.44 = 48,257.50/x
  3. Step 3: Cross multiply
    85,990.54x = 118,660.44 × 48,257.50
  4. Step 4: Simplify right side
    85,990.54x = 5,726,256,183.30
  5. Step 5: Solve for x
    x = 5,726,256,183.30/85,990.54
  6. Step 6: Final answer
    x = 66,591.70

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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.