Home / 62,105.20-93,144.74-19,989.05

Finding the Fourth Proportional to 62,105.20, 93,144.74 and 19,989.05

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Solution

The fourth proportional to 62,105.20, 93,144.74 and 19,989.05 is: 29,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,105.20 : 93,144.74 = 19,989.05 : x
  2. Step 2: Convert to fraction form
    62,105.20/93,144.74 = 19,989.05/x
  3. Step 3: Cross multiply
    62,105.20x = 93,144.74 × 19,989.05
  4. Step 4: Simplify right side
    62,105.20x = 1,861,874,299.43
  5. Step 5: Solve for x
    x = 1,861,874,299.43/62,105.20
  6. Step 6: Final answer
    x = 29,979.36

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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.