Home / 81,103.94-111,922.33-45,294.58

Finding the Fourth Proportional to 81,103.94, 111,922.33 and 45,294.58

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Solution

The fourth proportional to 81,103.94, 111,922.33 and 45,294.58 is: 62,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,103.94 : 111,922.33 = 45,294.58 : x
  2. Step 2: Convert to fraction form
    81,103.94/111,922.33 = 45,294.58/x
  3. Step 3: Cross multiply
    81,103.94x = 111,922.33 × 45,294.58
  4. Step 4: Simplify right side
    81,103.94x = 5,069,474,929.97
  5. Step 5: Solve for x
    x = 5,069,474,929.97/81,103.94
  6. Step 6: Final answer
    x = 62,505.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.