Home / 68,669.04-102,993.21-40,219.05

Finding the Fourth Proportional to 68,669.04, 102,993.21 and 40,219.05

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Solution

The fourth proportional to 68,669.04, 102,993.21 and 40,219.05 is: 60,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,669.04 : 102,993.21 = 40,219.05 : x
  2. Step 2: Convert to fraction form
    68,669.04/102,993.21 = 40,219.05/x
  3. Step 3: Cross multiply
    68,669.04x = 102,993.21 × 40,219.05
  4. Step 4: Simplify right side
    68,669.04x = 4,142,289,062.65
  5. Step 5: Solve for x
    x = 4,142,289,062.65/68,669.04
  6. Step 6: Final answer
    x = 60,322.51

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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.