Home / 90,908.06-136,369.86-27,742.39

Finding the Fourth Proportional to 90,908.06, 136,369.86 and 27,742.39

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Solution

The fourth proportional to 90,908.06, 136,369.86 and 27,742.39 is: 41,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,908.06 : 136,369.86 = 27,742.39 : x
  2. Step 2: Convert to fraction form
    90,908.06/136,369.86 = 27,742.39/x
  3. Step 3: Cross multiply
    90,908.06x = 136,369.86 × 27,742.39
  4. Step 4: Simplify right side
    90,908.06x = 3,783,225,499.44
  5. Step 5: Solve for x
    x = 3,783,225,499.44/90,908.06
  6. Step 6: Final answer
    x = 41,615.95

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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.