Home / 69,015.85-103,524.77-45,474.15

Finding the Fourth Proportional to 69,015.85, 103,524.77 and 45,474.15

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Solution

The fourth proportional to 69,015.85, 103,524.77 and 45,474.15 is: 68,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,015.85 : 103,524.77 = 45,474.15 : x
  2. Step 2: Convert to fraction form
    69,015.85/103,524.77 = 45,474.15/x
  3. Step 3: Cross multiply
    69,015.85x = 103,524.77 × 45,474.15
  4. Step 4: Simplify right side
    69,015.85x = 4,707,700,174.70
  5. Step 5: Solve for x
    x = 4,707,700,174.70/69,015.85
  6. Step 6: Final answer
    x = 68,211.87

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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.