Home / 69,559.08-104,339.43-19,640.40

Finding the Fourth Proportional to 69,559.08, 104,339.43 and 19,640.40

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Solution

The fourth proportional to 69,559.08, 104,339.43 and 19,640.40 is: 29,460.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,559.08 : 104,339.43 = 19,640.40 : x
  2. Step 2: Convert to fraction form
    69,559.08/104,339.43 = 19,640.40/x
  3. Step 3: Cross multiply
    69,559.08x = 104,339.43 × 19,640.40
  4. Step 4: Simplify right side
    69,559.08x = 2,049,268,140.97
  5. Step 5: Solve for x
    x = 2,049,268,140.97/69,559.08
  6. Step 6: Final answer
    x = 29,460.83

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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.