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Finding the Fourth Proportional to 68,800.86, 94,946.18 and 51,542.65

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Solution

The fourth proportional to 68,800.86, 94,946.18 and 51,542.65 is: 71,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,800.86 : 94,946.18 = 51,542.65 : x
  2. Step 2: Convert to fraction form
    68,800.86/94,946.18 = 51,542.65/x
  3. Step 3: Cross multiply
    68,800.86x = 94,946.18 × 51,542.65
  4. Step 4: Simplify right side
    68,800.86x = 4,893,777,724.58
  5. Step 5: Solve for x
    x = 4,893,777,724.58/68,800.86
  6. Step 6: Final answer
    x = 71,129.60

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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.