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Finding the Fourth Proportional to 79,198.56, 118,773 and 25,878.38

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Solution

The fourth proportional to 79,198.56, 118,773 and 25,878.38 is: 38,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,198.56 : 118,773 = 25,878.38 : x
  2. Step 2: Convert to fraction form
    79,198.56/118,773 = 25,878.38/x
  3. Step 3: Cross multiply
    79,198.56x = 118,773 × 25,878.38
  4. Step 4: Simplify right side
    79,198.56x = 3,073,652,827.74
  5. Step 5: Solve for x
    x = 3,073,652,827.74/79,198.56
  6. Step 6: Final answer
    x = 38,809.45

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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.