Home / 81,620.34-122,176.09-62,851.62

Finding the Fourth Proportional to 81,620.34, 122,176.09 and 62,851.62

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Solution

The fourth proportional to 81,620.34, 122,176.09 and 62,851.62 is: 94,081.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,620.34 : 122,176.09 = 62,851.62 : x
  2. Step 2: Convert to fraction form
    81,620.34/122,176.09 = 62,851.62/x
  3. Step 3: Cross multiply
    81,620.34x = 122,176.09 × 62,851.62
  4. Step 4: Simplify right side
    81,620.34x = 7,678,965,181.77
  5. Step 5: Solve for x
    x = 7,678,965,181.77/81,620.34
  6. Step 6: Final answer
    x = 94,081.51

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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.