Home / 76,753.30-115,121.94-20,599.42

Finding the Fourth Proportional to 76,753.30, 115,121.94 and 20,599.42

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Solution

The fourth proportional to 76,753.30, 115,121.94 and 20,599.42 is: 30,896.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,753.30 : 115,121.94 = 20,599.42 : x
  2. Step 2: Convert to fraction form
    76,753.30/115,121.94 = 20,599.42/x
  3. Step 3: Cross multiply
    76,753.30x = 115,121.94 × 20,599.42
  4. Step 4: Simplify right side
    76,753.30x = 2,371,445,193.27
  5. Step 5: Solve for x
    x = 2,371,445,193.27/76,753.30
  6. Step 6: Final answer
    x = 30,896.98

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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.