Home / 70,121.65-105,233.22-27,433.38

Finding the Fourth Proportional to 70,121.65, 105,233.22 and 27,433.38

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Solution

The fourth proportional to 70,121.65, 105,233.22 and 27,433.38 is: 41,169.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,121.65 : 105,233.22 = 27,433.38 : x
  2. Step 2: Convert to fraction form
    70,121.65/105,233.22 = 27,433.38/x
  3. Step 3: Cross multiply
    70,121.65x = 105,233.22 × 27,433.38
  4. Step 4: Simplify right side
    70,121.65x = 2,886,902,775.72
  5. Step 5: Solve for x
    x = 2,886,902,775.72/70,121.65
  6. Step 6: Final answer
    x = 41,169.92

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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.