Home / 69,091.14-103,625.12-19,176.31

Finding the Fourth Proportional to 69,091.14, 103,625.12 and 19,176.31

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Solution

The fourth proportional to 69,091.14, 103,625.12 and 19,176.31 is: 28,761.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,091.14 : 103,625.12 = 19,176.31 : x
  2. Step 2: Convert to fraction form
    69,091.14/103,625.12 = 19,176.31/x
  3. Step 3: Cross multiply
    69,091.14x = 103,625.12 × 19,176.31
  4. Step 4: Simplify right side
    69,091.14x = 1,987,147,602.38
  5. Step 5: Solve for x
    x = 1,987,147,602.38/69,091.14
  6. Step 6: Final answer
    x = 28,761.25

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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.