Home / 81,616.77-122,451.62-40,034.61

Finding the Fourth Proportional to 81,616.77, 122,451.62 and 40,034.61

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Solution

The fourth proportional to 81,616.77, 122,451.62 and 40,034.61 is: 60,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,616.77 : 122,451.62 = 40,034.61 : x
  2. Step 2: Convert to fraction form
    81,616.77/122,451.62 = 40,034.61/x
  3. Step 3: Cross multiply
    81,616.77x = 122,451.62 × 40,034.61
  4. Step 4: Simplify right side
    81,616.77x = 4,902,302,650.40
  5. Step 5: Solve for x
    x = 4,902,302,650.40/81,616.77
  6. Step 6: Final answer
    x = 60,064.89

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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.