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Finding the Fourth Proportional to 74,774, 112,167.48 and 19,370

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Solution

The fourth proportional to 74,774, 112,167.48 and 19,370 is: 29,056.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,774 : 112,167.48 = 19,370 : x
  2. Step 2: Convert to fraction form
    74,774/112,167.48 = 19,370/x
  3. Step 3: Cross multiply
    74,774x = 112,167.48 × 19,370
  4. Step 4: Simplify right side
    74,774x = 2,172,684,087.60
  5. Step 5: Solve for x
    x = 2,172,684,087.60/74,774
  6. Step 6: Final answer
    x = 29,056.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.