Home / 74,057.37-102,198.73-40,065.75

Finding the Fourth Proportional to 74,057.37, 102,198.73 and 40,065.75

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Solution

The fourth proportional to 74,057.37, 102,198.73 and 40,065.75 is: 55,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,057.37 : 102,198.73 = 40,065.75 : x
  2. Step 2: Convert to fraction form
    74,057.37/102,198.73 = 40,065.75/x
  3. Step 3: Cross multiply
    74,057.37x = 102,198.73 × 40,065.75
  4. Step 4: Simplify right side
    74,057.37x = 4,094,668,766.50
  5. Step 5: Solve for x
    x = 4,094,668,766.50/74,057.37
  6. Step 6: Final answer
    x = 55,290.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.