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Finding the Fourth Proportional to 77,067.63, 115,601.44 and 21,663.63

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Solution

The fourth proportional to 77,067.63, 115,601.44 and 21,663.63 is: 32,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,067.63 : 115,601.44 = 21,663.63 : x
  2. Step 2: Convert to fraction form
    77,067.63/115,601.44 = 21,663.63/x
  3. Step 3: Cross multiply
    77,067.63x = 115,601.44 × 21,663.63
  4. Step 4: Simplify right side
    77,067.63x = 2,504,346,823.63
  5. Step 5: Solve for x
    x = 2,504,346,823.63/77,067.63
  6. Step 6: Final answer
    x = 32,495.44

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Similar ratio
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1.5x scale

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.