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Finding the Fourth Proportional to 68,142.98, 94,030.80 and 50,247.65

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Solution

The fourth proportional to 68,142.98, 94,030.80 and 50,247.65 is: 69,336.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,142.98 : 94,030.80 = 50,247.65 : x
  2. Step 2: Convert to fraction form
    68,142.98/94,030.80 = 50,247.65/x
  3. Step 3: Cross multiply
    68,142.98x = 94,030.80 × 50,247.65
  4. Step 4: Simplify right side
    68,142.98x = 4,724,826,727.62
  5. Step 5: Solve for x
    x = 4,724,826,727.62/68,142.98
  6. Step 6: Final answer
    x = 69,336.95

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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.