Home / 69,604.16-104,386.40-19,680.96

Finding the Fourth Proportional to 69,604.16, 104,386.40 and 19,680.96

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Solution

The fourth proportional to 69,604.16, 104,386.40 and 19,680.96 is: 29,515.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,604.16 : 104,386.40 = 19,680.96 : x
  2. Step 2: Convert to fraction form
    69,604.16/104,386.40 = 19,680.96/x
  3. Step 3: Cross multiply
    69,604.16x = 104,386.40 × 19,680.96
  4. Step 4: Simplify right side
    69,604.16x = 2,054,424,562.94
  5. Step 5: Solve for x
    x = 2,054,424,562.94/69,604.16
  6. Step 6: Final answer
    x = 29,515.83

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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.