Home / 69,205.85-103,635.97-45,705.05

Finding the Fourth Proportional to 69,205.85, 103,635.97 and 45,705.05

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Solution

The fourth proportional to 69,205.85, 103,635.97 and 45,705.05 is: 68,443.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,205.85 : 103,635.97 = 45,705.05 : x
  2. Step 2: Convert to fraction form
    69,205.85/103,635.97 = 45,705.05/x
  3. Step 3: Cross multiply
    69,205.85x = 103,635.97 × 45,705.05
  4. Step 4: Simplify right side
    69,205.85x = 4,736,687,190.65
  5. Step 5: Solve for x
    x = 4,736,687,190.65/69,205.85
  6. Step 6: Final answer
    x = 68,443.45

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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.