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Finding the Fourth Proportional to 77,997.52, 117,006 and 25,392.88

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Solution

The fourth proportional to 77,997.52, 117,006 and 25,392.88 is: 38,092.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,997.52 : 117,006 = 25,392.88 : x
  2. Step 2: Convert to fraction form
    77,997.52/117,006 = 25,392.88/x
  3. Step 3: Cross multiply
    77,997.52x = 117,006 × 25,392.88
  4. Step 4: Simplify right side
    77,997.52x = 2,971,119,317.28
  5. Step 5: Solve for x
    x = 2,971,119,317.28/77,997.52
  6. Step 6: Final answer
    x = 38,092.48

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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.