Home / 62,940.42-94,388.14-20,812.72

Finding the Fourth Proportional to 62,940.42, 94,388.14 and 20,812.72

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Solution

The fourth proportional to 62,940.42, 94,388.14 and 20,812.72 is: 31,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,940.42 : 94,388.14 = 20,812.72 : x
  2. Step 2: Convert to fraction form
    62,940.42/94,388.14 = 20,812.72/x
  3. Step 3: Cross multiply
    62,940.42x = 94,388.14 × 20,812.72
  4. Step 4: Simplify right side
    62,940.42x = 1,964,473,929.14
  5. Step 5: Solve for x
    x = 1,964,473,929.14/62,940.42
  6. Step 6: Final answer
    x = 31,211.64

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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.