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Finding the Fourth Proportional to 69,954.77, 104,929.56 and 20,034.81

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Solution

The fourth proportional to 69,954.77, 104,929.56 and 20,034.81 is: 30,051.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,954.77 : 104,929.56 = 20,034.81 : x
  2. Step 2: Convert to fraction form
    69,954.77/104,929.56 = 20,034.81/x
  3. Step 3: Cross multiply
    69,954.77x = 104,929.56 × 20,034.81
  4. Step 4: Simplify right side
    69,954.77x = 2,102,243,797.98
  5. Step 5: Solve for x
    x = 2,102,243,797.98/69,954.77
  6. Step 6: Final answer
    x = 30,051.47

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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.