Home / 51,177.56-76,766.34-19,990.94

Finding the Fourth Proportional to 51,177.56, 76,766.34 and 19,990.94

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Solution

The fourth proportional to 51,177.56, 76,766.34 and 19,990.94 is: 29,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,177.56 : 76,766.34 = 19,990.94 : x
  2. Step 2: Convert to fraction form
    51,177.56/76,766.34 = 19,990.94/x
  3. Step 3: Cross multiply
    51,177.56x = 76,766.34 × 19,990.94
  4. Step 4: Simplify right side
    51,177.56x = 1,534,631,197.00
  5. Step 5: Solve for x
    x = 1,534,631,197.00/51,177.56
  6. Step 6: Final answer
    x = 29,986.41

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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.