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Finding the Fourth Proportional to 53,267.84, 79,880.99 and 19,969.73

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Solution

The fourth proportional to 53,267.84, 79,880.99 and 19,969.73 is: 29,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,267.84 : 79,880.99 = 19,969.73 : x
  2. Step 2: Convert to fraction form
    53,267.84/79,880.99 = 19,969.73/x
  3. Step 3: Cross multiply
    53,267.84x = 79,880.99 × 19,969.73
  4. Step 4: Simplify right side
    53,267.84x = 1,595,202,052.06
  5. Step 5: Solve for x
    x = 1,595,202,052.06/53,267.84
  6. Step 6: Final answer
    x = 29,946.81

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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.