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Finding the Fourth Proportional to 45,976.84, 68,969.25 and 12,696.93

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Solution

The fourth proportional to 45,976.84, 68,969.25 and 12,696.93 is: 19,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,976.84 : 68,969.25 = 12,696.93 : x
  2. Step 2: Convert to fraction form
    45,976.84/68,969.25 = 12,696.93/x
  3. Step 3: Cross multiply
    45,976.84x = 68,969.25 × 12,696.93
  4. Step 4: Simplify right side
    45,976.84x = 875,697,739.40
  5. Step 5: Solve for x
    x = 875,697,739.40/45,976.84
  6. Step 6: Final answer
    x = 19,046.50

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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.