Home / 81,676.46-122,519.30-29,085.95

Finding the Fourth Proportional to 81,676.46, 122,519.30 and 29,085.95

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Solution

The fourth proportional to 81,676.46, 122,519.30 and 29,085.95 is: 43,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,676.46 : 122,519.30 = 29,085.95 : x
  2. Step 2: Convert to fraction form
    81,676.46/122,519.30 = 29,085.95/x
  3. Step 3: Cross multiply
    81,676.46x = 122,519.30 × 29,085.95
  4. Step 4: Simplify right side
    81,676.46x = 3,563,590,233.84
  5. Step 5: Solve for x
    x = 3,563,590,233.84/81,676.46
  6. Step 6: Final answer
    x = 43,630.57

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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.