Home / 69,231.29-104,063.70-45,690.12

Finding the Fourth Proportional to 69,231.29, 104,063.70 and 45,690.12

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Solution

The fourth proportional to 69,231.29, 104,063.70 and 45,690.12 is: 68,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,231.29 : 104,063.70 = 45,690.12 : x
  2. Step 2: Convert to fraction form
    69,231.29/104,063.70 = 45,690.12/x
  3. Step 3: Cross multiply
    69,231.29x = 104,063.70 × 45,690.12
  4. Step 4: Simplify right side
    69,231.29x = 4,754,682,940.64
  5. Step 5: Solve for x
    x = 4,754,682,940.64/69,231.29
  6. Step 6: Final answer
    x = 68,678.24

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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.