Home / 81,623.90-122,435.85-50,519.90

Finding the Fourth Proportional to 81,623.90, 122,435.85 and 50,519.90

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Solution

The fourth proportional to 81,623.90, 122,435.85 and 50,519.90 is: 75,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,623.90 : 122,435.85 = 50,519.90 : x
  2. Step 2: Convert to fraction form
    81,623.90/122,435.85 = 50,519.90/x
  3. Step 3: Cross multiply
    81,623.90x = 122,435.85 × 50,519.90
  4. Step 4: Simplify right side
    81,623.90x = 6,185,446,898.42
  5. Step 5: Solve for x
    x = 6,185,446,898.42/81,623.90
  6. Step 6: Final answer
    x = 75,779.85

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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.