Home / 90,816.42-136,229.75-27,638.60

Finding the Fourth Proportional to 90,816.42, 136,229.75 and 27,638.60

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Solution

The fourth proportional to 90,816.42, 136,229.75 and 27,638.60 is: 41,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,816.42 : 136,229.75 = 27,638.60 : x
  2. Step 2: Convert to fraction form
    90,816.42/136,229.75 = 27,638.60/x
  3. Step 3: Cross multiply
    90,816.42x = 136,229.75 × 27,638.60
  4. Step 4: Simplify right side
    90,816.42x = 3,765,199,568.35
  5. Step 5: Solve for x
    x = 3,765,199,568.35/90,816.42
  6. Step 6: Final answer
    x = 41,459.46

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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.