Home / 90,796.25-136,216.22-28,466.75

Finding the Fourth Proportional to 90,796.25, 136,216.22 and 28,466.75

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Solution

The fourth proportional to 90,796.25, 136,216.22 and 28,466.75 is: 42,706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,796.25 : 136,216.22 = 28,466.75 : x
  2. Step 2: Convert to fraction form
    90,796.25/136,216.22 = 28,466.75/x
  3. Step 3: Cross multiply
    90,796.25x = 136,216.22 × 28,466.75
  4. Step 4: Simplify right side
    90,796.25x = 3,877,633,278.89
  5. Step 5: Solve for x
    x = 3,877,633,278.89/90,796.25
  6. Step 6: Final answer
    x = 42,706.97

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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.