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Finding the Fourth Proportional to 74,604.58, 102,992.38 and 57,570.54

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Solution

The fourth proportional to 74,604.58, 102,992.38 and 57,570.54 is: 79,476.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,604.58 : 102,992.38 = 57,570.54 : x
  2. Step 2: Convert to fraction form
    74,604.58/102,992.38 = 57,570.54/x
  3. Step 3: Cross multiply
    74,604.58x = 102,992.38 × 57,570.54
  4. Step 4: Simplify right side
    74,604.58x = 5,929,326,932.49
  5. Step 5: Solve for x
    x = 5,929,326,932.49/74,604.58
  6. Step 6: Final answer
    x = 79,476.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.