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Finding the Fourth Proportional to 86,035.54, 129,086.42 and 41,658.88

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Solution

The fourth proportional to 86,035.54, 129,086.42 and 41,658.88 is: 62,504.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,035.54 : 129,086.42 = 41,658.88 : x
  2. Step 2: Convert to fraction form
    86,035.54/129,086.42 = 41,658.88/x
  3. Step 3: Cross multiply
    86,035.54x = 129,086.42 × 41,658.88
  4. Step 4: Simplify right side
    86,035.54x = 5,377,595,680.41
  5. Step 5: Solve for x
    x = 5,377,595,680.41/86,035.54
  6. Step 6: Final answer
    x = 62,504.35

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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.