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Finding the Fourth Proportional to 69,162.50, 103,743.84 and 19,242.60

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Solution

The fourth proportional to 69,162.50, 103,743.84 and 19,242.60 is: 28,863.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,162.50 : 103,743.84 = 19,242.60 : x
  2. Step 2: Convert to fraction form
    69,162.50/103,743.84 = 19,242.60/x
  3. Step 3: Cross multiply
    69,162.50x = 103,743.84 × 19,242.60
  4. Step 4: Simplify right side
    69,162.50x = 1,996,301,215.58
  5. Step 5: Solve for x
    x = 1,996,301,215.58/69,162.50
  6. Step 6: Final answer
    x = 28,863.93

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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.