Home / 68,020.41-102,030.47-18,100.50

Finding the Fourth Proportional to 68,020.41, 102,030.47 and 18,100.50

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Solution

The fourth proportional to 68,020.41, 102,030.47 and 18,100.50 is: 27,150.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,020.41 : 102,030.47 = 18,100.50 : x
  2. Step 2: Convert to fraction form
    68,020.41/102,030.47 = 18,100.50/x
  3. Step 3: Cross multiply
    68,020.41x = 102,030.47 × 18,100.50
  4. Step 4: Simplify right side
    68,020.41x = 1,846,802,522.24
  5. Step 5: Solve for x
    x = 1,846,802,522.24/68,020.41
  6. Step 6: Final answer
    x = 27,150.71

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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.