Home / 81,890.76-122,836.16-22,726.44

Finding the Fourth Proportional to 81,890.76, 122,836.16 and 22,726.44

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Solution

The fourth proportional to 81,890.76, 122,836.16 and 22,726.44 is: 34,089.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,890.76 : 122,836.16 = 22,726.44 : x
  2. Step 2: Convert to fraction form
    81,890.76/122,836.16 = 22,726.44/x
  3. Step 3: Cross multiply
    81,890.76x = 122,836.16 × 22,726.44
  4. Step 4: Simplify right side
    81,890.76x = 2,791,628,620.07
  5. Step 5: Solve for x
    x = 2,791,628,620.07/81,890.76
  6. Step 6: Final answer
    x = 34,089.67

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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.