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Finding the Fourth Proportional to 68,370.44, 94,359.86 and 39,683.96

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Solution

The fourth proportional to 68,370.44, 94,359.86 and 39,683.96 is: 54,768.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,370.44 : 94,359.86 = 39,683.96 : x
  2. Step 2: Convert to fraction form
    68,370.44/94,359.86 = 39,683.96/x
  3. Step 3: Cross multiply
    68,370.44x = 94,359.86 × 39,683.96
  4. Step 4: Simplify right side
    68,370.44x = 3,744,572,909.85
  5. Step 5: Solve for x
    x = 3,744,572,909.85/68,370.44
  6. Step 6: Final answer
    x = 54,768.89

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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.