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Finding the Fourth Proportional to 90,181.75, 135,294.90 and 27,852.25

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Solution

The fourth proportional to 90,181.75, 135,294.90 and 27,852.25 is: 41,785.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,181.75 : 135,294.90 = 27,852.25 : x
  2. Step 2: Convert to fraction form
    90,181.75/135,294.90 = 27,852.25/x
  3. Step 3: Cross multiply
    90,181.75x = 135,294.90 × 27,852.25
  4. Step 4: Simplify right side
    90,181.75x = 3,768,267,378.53
  5. Step 5: Solve for x
    x = 3,768,267,378.53/90,181.75
  6. Step 6: Final answer
    x = 41,785.25

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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.