Home / 43,367.12-65,055-11,777.72

Finding the Fourth Proportional to 43,367.12, 65,055 and 11,777.72

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Solution

The fourth proportional to 43,367.12, 65,055 and 11,777.72 is: 17,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,367.12 : 65,055 = 11,777.72 : x
  2. Step 2: Convert to fraction form
    43,367.12/65,055 = 11,777.72/x
  3. Step 3: Cross multiply
    43,367.12x = 65,055 × 11,777.72
  4. Step 4: Simplify right side
    43,367.12x = 766,199,574.60
  5. Step 5: Solve for x
    x = 766,199,574.60/43,367.12
  6. Step 6: Final answer
    x = 17,667.75

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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.