Home / 81,863.02-122,841.60-34,474.38

Finding the Fourth Proportional to 81,863.02, 122,841.60 and 34,474.38

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Solution

The fourth proportional to 81,863.02, 122,841.60 and 34,474.38 is: 51,731.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,863.02 : 122,841.60 = 34,474.38 : x
  2. Step 2: Convert to fraction form
    81,863.02/122,841.60 = 34,474.38/x
  3. Step 3: Cross multiply
    81,863.02x = 122,841.60 × 34,474.38
  4. Step 4: Simplify right side
    81,863.02x = 4,234,887,998.21
  5. Step 5: Solve for x
    x = 4,234,887,998.21/81,863.02
  6. Step 6: Final answer
    x = 51,731.39

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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.