Home / 81,929.69-122,942.30-34,541.88

Finding the Fourth Proportional to 81,929.69, 122,942.30 and 34,541.88

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Solution

The fourth proportional to 81,929.69, 122,942.30 and 34,541.88 is: 51,832.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,929.69 : 122,942.30 = 34,541.88 : x
  2. Step 2: Convert to fraction form
    81,929.69/122,942.30 = 34,541.88/x
  3. Step 3: Cross multiply
    81,929.69x = 122,942.30 × 34,541.88
  4. Step 4: Simplify right side
    81,929.69x = 4,246,658,173.52
  5. Step 5: Solve for x
    x = 4,246,658,173.52/81,929.69
  6. Step 6: Final answer
    x = 51,832.96

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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.