Home / 90,811.25-136,237.60-27,640.32

Finding the Fourth Proportional to 90,811.25, 136,237.60 and 27,640.32

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Solution

The fourth proportional to 90,811.25, 136,237.60 and 27,640.32 is: 41,466.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,811.25 : 136,237.60 = 27,640.32 : x
  2. Step 2: Convert to fraction form
    90,811.25/136,237.60 = 27,640.32/x
  3. Step 3: Cross multiply
    90,811.25x = 136,237.60 × 27,640.32
  4. Step 4: Simplify right side
    90,811.25x = 3,765,651,150.03
  5. Step 5: Solve for x
    x = 3,765,651,150.03/90,811.25
  6. Step 6: Final answer
    x = 41,466.79

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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.