Home / 74,540.42-111,787.87-21,236.75

Finding the Fourth Proportional to 74,540.42, 111,787.87 and 21,236.75

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Solution

The fourth proportional to 74,540.42, 111,787.87 and 21,236.75 is: 31,848.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,540.42 : 111,787.87 = 21,236.75 : x
  2. Step 2: Convert to fraction form
    74,540.42/111,787.87 = 21,236.75/x
  3. Step 3: Cross multiply
    74,540.42x = 111,787.87 × 21,236.75
  4. Step 4: Simplify right side
    74,540.42x = 2,374,011,048.22
  5. Step 5: Solve for x
    x = 2,374,011,048.22/74,540.42
  6. Step 6: Final answer
    x = 31,848.64

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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.