Home / 81,835.16-122,759.70-22,670.84

Finding the Fourth Proportional to 81,835.16, 122,759.70 and 22,670.84

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Solution

The fourth proportional to 81,835.16, 122,759.70 and 22,670.84 is: 34,008.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,835.16 : 122,759.70 = 22,670.84 : x
  2. Step 2: Convert to fraction form
    81,835.16/122,759.70 = 22,670.84/x
  3. Step 3: Cross multiply
    81,835.16x = 122,759.70 × 22,670.84
  4. Step 4: Simplify right side
    81,835.16x = 2,783,065,517.15
  5. Step 5: Solve for x
    x = 2,783,065,517.15/81,835.16
  6. Step 6: Final answer
    x = 34,008.19

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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.