Home / 81,909.35-122,706.44-50,226.93

Finding the Fourth Proportional to 81,909.35, 122,706.44 and 50,226.93

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Solution

The fourth proportional to 81,909.35, 122,706.44 and 50,226.93 is: 75,243.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,909.35 : 122,706.44 = 50,226.93 : x
  2. Step 2: Convert to fraction form
    81,909.35/122,706.44 = 50,226.93/x
  3. Step 3: Cross multiply
    81,909.35x = 122,706.44 × 50,226.93
  4. Step 4: Simplify right side
    81,909.35x = 6,163,167,521.29
  5. Step 5: Solve for x
    x = 6,163,167,521.29/81,909.35
  6. Step 6: Final answer
    x = 75,243.77

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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.