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Finding the Fourth Proportional to 61,289.94, 91,940.19 and 16,916.70

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Solution

The fourth proportional to 61,289.94, 91,940.19 and 16,916.70 is: 25,376.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,289.94 : 91,940.19 = 16,916.70 : x
  2. Step 2: Convert to fraction form
    61,289.94/91,940.19 = 16,916.70/x
  3. Step 3: Cross multiply
    61,289.94x = 91,940.19 × 16,916.70
  4. Step 4: Simplify right side
    61,289.94x = 1,555,324,612.17
  5. Step 5: Solve for x
    x = 1,555,324,612.17/61,289.94
  6. Step 6: Final answer
    x = 25,376.51

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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.