Home / 271,511.37-407,332.89-81,960.41

Finding the Fourth Proportional to 271,511.37, 407,332.89 and 81,960.41

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Solution

The fourth proportional to 271,511.37, 407,332.89 and 81,960.41 is: 122,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,511.37 : 407,332.89 = 81,960.41 : x
  2. Step 2: Convert to fraction form
    271,511.37/407,332.89 = 81,960.41/x
  3. Step 3: Cross multiply
    271,511.37x = 407,332.89 × 81,960.41
  4. Step 4: Simplify right side
    271,511.37x = 33,385,170,670.88
  5. Step 5: Solve for x
    x = 33,385,170,670.88/271,511.37
  6. Step 6: Final answer
    x = 122,960.49

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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.