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Finding the Fourth Proportional to 45,287.78, 67,943.41 and 17,208.32

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Solution

The fourth proportional to 45,287.78, 67,943.41 and 17,208.32 is: 25,816.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,287.78 : 67,943.41 = 17,208.32 : x
  2. Step 2: Convert to fraction form
    45,287.78/67,943.41 = 17,208.32/x
  3. Step 3: Cross multiply
    45,287.78x = 67,943.41 × 17,208.32
  4. Step 4: Simplify right side
    45,287.78x = 1,169,191,558.43
  5. Step 5: Solve for x
    x = 1,169,191,558.43/45,287.78
  6. Step 6: Final answer
    x = 25,816.94

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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.