Home / 81,935.06-122,904.20-25,773.98

Finding the Fourth Proportional to 81,935.06, 122,904.20 and 25,773.98

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Solution

The fourth proportional to 81,935.06, 122,904.20 and 25,773.98 is: 38,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,935.06 : 122,904.20 = 25,773.98 : x
  2. Step 2: Convert to fraction form
    81,935.06/122,904.20 = 25,773.98/x
  3. Step 3: Cross multiply
    81,935.06x = 122,904.20 × 25,773.98
  4. Step 4: Simplify right side
    81,935.06x = 3,167,729,842.63
  5. Step 5: Solve for x
    x = 3,167,729,842.63/81,935.06
  6. Step 6: Final answer
    x = 38,661.47

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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.