Home / 81,822.60-122,690.70-29,233.80

Finding the Fourth Proportional to 81,822.60, 122,690.70 and 29,233.80

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Solution

The fourth proportional to 81,822.60, 122,690.70 and 29,233.80 is: 43,835.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,822.60 : 122,690.70 = 29,233.80 : x
  2. Step 2: Convert to fraction form
    81,822.60/122,690.70 = 29,233.80/x
  3. Step 3: Cross multiply
    81,822.60x = 122,690.70 × 29,233.80
  4. Step 4: Simplify right side
    81,822.60x = 3,586,715,385.66
  5. Step 5: Solve for x
    x = 3,586,715,385.66/81,822.60
  6. Step 6: Final answer
    x = 43,835.27

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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.