Home / 81,869.34-122,804.01-29,293.86

Finding the Fourth Proportional to 81,869.34, 122,804.01 and 29,293.86

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Solution

The fourth proportional to 81,869.34, 122,804.01 and 29,293.86 is: 43,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,869.34 : 122,804.01 = 29,293.86 : x
  2. Step 2: Convert to fraction form
    81,869.34/122,804.01 = 29,293.86/x
  3. Step 3: Cross multiply
    81,869.34x = 122,804.01 × 29,293.86
  4. Step 4: Simplify right side
    81,869.34x = 3,597,403,476.38
  5. Step 5: Solve for x
    x = 3,597,403,476.38/81,869.34
  6. Step 6: Final answer
    x = 43,940.79

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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.