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Finding the Fourth Proportional to 78,077, 117,118.74 and 22,673

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Solution

The fourth proportional to 78,077, 117,118.74 and 22,673 is: 34,010.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,077 : 117,118.74 = 22,673 : x
  2. Step 2: Convert to fraction form
    78,077/117,118.74 = 22,673/x
  3. Step 3: Cross multiply
    78,077x = 117,118.74 × 22,673
  4. Step 4: Simplify right side
    78,077x = 2,655,433,192.02
  5. Step 5: Solve for x
    x = 2,655,433,192.02/78,077
  6. Step 6: Final answer
    x = 34,010.44

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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.