Home / 66,727.42-100,112.15-29,318.96

Finding the Fourth Proportional to 66,727.42, 100,112.15 and 29,318.96

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Solution

The fourth proportional to 66,727.42, 100,112.15 and 29,318.96 is: 43,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,727.42 : 100,112.15 = 29,318.96 : x
  2. Step 2: Convert to fraction form
    66,727.42/100,112.15 = 29,318.96/x
  3. Step 3: Cross multiply
    66,727.42x = 100,112.15 × 29,318.96
  4. Step 4: Simplify right side
    66,727.42x = 2,935,183,625.89
  5. Step 5: Solve for x
    x = 2,935,183,625.89/66,727.42
  6. Step 6: Final answer
    x = 43,987.67

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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.