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Finding the Fourth Proportional to 69,830.80, 104,746.41 and 17,240.29

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Solution

The fourth proportional to 69,830.80, 104,746.41 and 17,240.29 is: 25,860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,830.80 : 104,746.41 = 17,240.29 : x
  2. Step 2: Convert to fraction form
    69,830.80/104,746.41 = 17,240.29/x
  3. Step 3: Cross multiply
    69,830.80x = 104,746.41 × 17,240.29
  4. Step 4: Simplify right side
    69,830.80x = 1,805,858,484.86
  5. Step 5: Solve for x
    x = 1,805,858,484.86/69,830.80
  6. Step 6: Final answer
    x = 25,860.49

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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.