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Finding the Fourth Proportional to 86,818.62, 130,249.77 and 40,104.54

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Solution

The fourth proportional to 86,818.62, 130,249.77 and 40,104.54 is: 60,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,818.62 : 130,249.77 = 40,104.54 : x
  2. Step 2: Convert to fraction form
    86,818.62/130,249.77 = 40,104.54/x
  3. Step 3: Cross multiply
    86,818.62x = 130,249.77 × 40,104.54
  4. Step 4: Simplify right side
    86,818.62x = 5,223,607,110.96
  5. Step 5: Solve for x
    x = 5,223,607,110.96/86,818.62
  6. Step 6: Final answer
    x = 60,166.90

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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.