Home / 81,890.06-122,793.29-37,478.73

Finding the Fourth Proportional to 81,890.06, 122,793.29 and 37,478.73

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Solution

The fourth proportional to 81,890.06, 122,793.29 and 37,478.73 is: 56,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,890.06 : 122,793.29 = 37,478.73 : x
  2. Step 2: Convert to fraction form
    81,890.06/122,793.29 = 37,478.73/x
  3. Step 3: Cross multiply
    81,890.06x = 122,793.29 × 37,478.73
  4. Step 4: Simplify right side
    81,890.06x = 4,602,136,561.72
  5. Step 5: Solve for x
    x = 4,602,136,561.72/81,890.06
  6. Step 6: Final answer
    x = 56,198.96

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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.