Home / 90,122.22-135,051.84-50,690.34

Finding the Fourth Proportional to 90,122.22, 135,051.84 and 50,690.34

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Solution

The fourth proportional to 90,122.22, 135,051.84 and 50,690.34 is: 75,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,122.22 : 135,051.84 = 50,690.34 : x
  2. Step 2: Convert to fraction form
    90,122.22/135,051.84 = 50,690.34/x
  3. Step 3: Cross multiply
    90,122.22x = 135,051.84 × 50,690.34
  4. Step 4: Simplify right side
    90,122.22x = 6,845,823,687.23
  5. Step 5: Solve for x
    x = 6,845,823,687.23/90,122.22
  6. Step 6: Final answer
    x = 75,961.55

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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.