Home / 81,975.24-122,992.74-34,602.12

Finding the Fourth Proportional to 81,975.24, 122,992.74 and 34,602.12

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Solution

The fourth proportional to 81,975.24, 122,992.74 and 34,602.12 is: 51,915.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,975.24 : 122,992.74 = 34,602.12 : x
  2. Step 2: Convert to fraction form
    81,975.24/122,992.74 = 34,602.12/x
  3. Step 3: Cross multiply
    81,975.24x = 122,992.74 × 34,602.12
  4. Step 4: Simplify right side
    81,975.24x = 4,255,809,548.61
  5. Step 5: Solve for x
    x = 4,255,809,548.61/81,975.24
  6. Step 6: Final answer
    x = 51,915.79

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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.