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Finding the Fourth Proportional to 70,379.73, 97,120.44 and 38,542.50

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Solution

The fourth proportional to 70,379.73, 97,120.44 and 38,542.50 is: 53,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,379.73 : 97,120.44 = 38,542.50 : x
  2. Step 2: Convert to fraction form
    70,379.73/97,120.44 = 38,542.50/x
  3. Step 3: Cross multiply
    70,379.73x = 97,120.44 × 38,542.50
  4. Step 4: Simplify right side
    70,379.73x = 3,743,264,558.70
  5. Step 5: Solve for x
    x = 3,743,264,558.70/70,379.73
  6. Step 6: Final answer
    x = 53,186.69

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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.