Home / 69,299.35-103,964.63-21,917.31

Finding the Fourth Proportional to 69,299.35, 103,964.63 and 21,917.31

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Solution

The fourth proportional to 69,299.35, 103,964.63 and 21,917.31 is: 32,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,299.35 : 103,964.63 = 21,917.31 : x
  2. Step 2: Convert to fraction form
    69,299.35/103,964.63 = 21,917.31/x
  3. Step 3: Cross multiply
    69,299.35x = 103,964.63 × 21,917.31
  4. Step 4: Simplify right side
    69,299.35x = 2,278,624,848.51
  5. Step 5: Solve for x
    x = 2,278,624,848.51/69,299.35
  6. Step 6: Final answer
    x = 32,880.90

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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.