Home / 271,405.03-406,975.64-81,830.25

Finding the Fourth Proportional to 271,405.03, 406,975.64 and 81,830.25

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Solution

The fourth proportional to 271,405.03, 406,975.64 and 81,830.25 is: 122,705.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,405.03 : 406,975.64 = 81,830.25 : x
  2. Step 2: Convert to fraction form
    271,405.03/406,975.64 = 81,830.25/x
  3. Step 3: Cross multiply
    271,405.03x = 406,975.64 × 81,830.25
  4. Step 4: Simplify right side
    271,405.03x = 33,302,918,416.25
  5. Step 5: Solve for x
    x = 33,302,918,416.25/271,405.03
  6. Step 6: Final answer
    x = 122,705.61

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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.