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Finding the Fourth Proportional to 71,716.34, 98,989.39 and 47,842.95

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Solution

The fourth proportional to 71,716.34, 98,989.39 and 47,842.95 is: 66,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,716.34 : 98,989.39 = 47,842.95 : x
  2. Step 2: Convert to fraction form
    71,716.34/98,989.39 = 47,842.95/x
  3. Step 3: Cross multiply
    71,716.34x = 98,989.39 × 47,842.95
  4. Step 4: Simplify right side
    71,716.34x = 4,735,944,867.31
  5. Step 5: Solve for x
    x = 4,735,944,867.31/71,716.34
  6. Step 6: Final answer
    x = 66,037.18

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