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Finding the Fourth Proportional to 79,289.44, 118,954 and 55,961.44

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Solution

The fourth proportional to 79,289.44, 118,954 and 55,961.44 is: 83,956.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,289.44 : 118,954 = 55,961.44 : x
  2. Step 2: Convert to fraction form
    79,289.44/118,954 = 55,961.44/x
  3. Step 3: Cross multiply
    79,289.44x = 118,954 × 55,961.44
  4. Step 4: Simplify right side
    79,289.44x = 6,656,837,133.76
  5. Step 5: Solve for x
    x = 6,656,837,133.76/79,289.44
  6. Step 6: Final answer
    x = 83,956.16

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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.