Home / 79,719.43-119,586.03-20,554.60

Finding the Fourth Proportional to 79,719.43, 119,586.03 and 20,554.60

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Solution

The fourth proportional to 79,719.43, 119,586.03 and 20,554.60 is: 30,833.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,719.43 : 119,586.03 = 20,554.60 : x
  2. Step 2: Convert to fraction form
    79,719.43/119,586.03 = 20,554.60/x
  3. Step 3: Cross multiply
    79,719.43x = 119,586.03 × 20,554.60
  4. Step 4: Simplify right side
    79,719.43x = 2,458,043,012.24
  5. Step 5: Solve for x
    x = 2,458,043,012.24/79,719.43
  6. Step 6: Final answer
    x = 30,833.68

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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.