Home / 74,539.42-111,786.37-21,235.75

Finding the Fourth Proportional to 74,539.42, 111,786.37 and 21,235.75

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Solution

The fourth proportional to 74,539.42, 111,786.37 and 21,235.75 is: 31,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,539.42 : 111,786.37 = 21,235.75 : x
  2. Step 2: Convert to fraction form
    74,539.42/111,786.37 = 21,235.75/x
  3. Step 3: Cross multiply
    74,539.42x = 111,786.37 × 21,235.75
  4. Step 4: Simplify right side
    74,539.42x = 2,373,867,074.17
  5. Step 5: Solve for x
    x = 2,373,867,074.17/74,539.42
  6. Step 6: Final answer
    x = 31,847.14

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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.