Home / 81,848.37-122,747.88-53,767.29

Finding the Fourth Proportional to 81,848.37, 122,747.88 and 53,767.29

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Solution

The fourth proportional to 81,848.37, 122,747.88 and 53,767.29 is: 80,634.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,848.37 : 122,747.88 = 53,767.29 : x
  2. Step 2: Convert to fraction form
    81,848.37/122,747.88 = 53,767.29/x
  3. Step 3: Cross multiply
    81,848.37x = 122,747.88 × 53,767.29
  4. Step 4: Simplify right side
    81,848.37x = 6,599,820,860.85
  5. Step 5: Solve for x
    x = 6,599,820,860.85/81,848.37
  6. Step 6: Final answer
    x = 80,634.73

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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.