Home / 80,850.34-121,271.46-30,954.34

Finding the Fourth Proportional to 80,850.34, 121,271.46 and 30,954.34

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Solution

The fourth proportional to 80,850.34, 121,271.46 and 30,954.34 is: 46,429.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,850.34 : 121,271.46 = 30,954.34 : x
  2. Step 2: Convert to fraction form
    80,850.34/121,271.46 = 30,954.34/x
  3. Step 3: Cross multiply
    80,850.34x = 121,271.46 × 30,954.34
  4. Step 4: Simplify right side
    80,850.34x = 3,753,878,005.14
  5. Step 5: Solve for x
    x = 3,753,878,005.14/80,850.34
  6. Step 6: Final answer
    x = 46,429.96

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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.