Home / 90,815.42-136,228.25-27,637.60

Finding the Fourth Proportional to 90,815.42, 136,228.25 and 27,637.60

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Solution

The fourth proportional to 90,815.42, 136,228.25 and 27,637.60 is: 41,457.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,815.42 : 136,228.25 = 27,637.60 : x
  2. Step 2: Convert to fraction form
    90,815.42/136,228.25 = 27,637.60/x
  3. Step 3: Cross multiply
    90,815.42x = 136,228.25 × 27,637.60
  4. Step 4: Simplify right side
    90,815.42x = 3,765,022,121.58
  5. Step 5: Solve for x
    x = 3,765,022,121.58/90,815.42
  6. Step 6: Final answer
    x = 41,457.96

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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.