Home / 69,763.23-104,644.85-20,515.23

Finding the Fourth Proportional to 69,763.23, 104,644.85 and 20,515.23

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Solution

The fourth proportional to 69,763.23, 104,644.85 and 20,515.23 is: 30,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,763.23 : 104,644.85 = 20,515.23 : x
  2. Step 2: Convert to fraction form
    69,763.23/104,644.85 = 20,515.23/x
  3. Step 3: Cross multiply
    69,763.23x = 104,644.85 × 20,515.23
  4. Step 4: Simplify right side
    69,763.23x = 2,146,813,063.49
  5. Step 5: Solve for x
    x = 2,146,813,063.49/69,763.23
  6. Step 6: Final answer
    x = 30,772.85

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1.5x scale

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.