Home / 69,640.61-104,447.55-19,708.65

Finding the Fourth Proportional to 69,640.61, 104,447.55 and 19,708.65

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Solution

The fourth proportional to 69,640.61, 104,447.55 and 19,708.65 is: 29,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,640.61 : 104,447.55 = 19,708.65 : x
  2. Step 2: Convert to fraction form
    69,640.61/104,447.55 = 19,708.65/x
  3. Step 3: Cross multiply
    69,640.61x = 104,447.55 × 19,708.65
  4. Step 4: Simplify right side
    69,640.61x = 2,058,520,206.31
  5. Step 5: Solve for x
    x = 2,058,520,206.31/69,640.61
  6. Step 6: Final answer
    x = 29,559.19

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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.