Home / 271,005.39-406,427.07-81,415.05

Finding the Fourth Proportional to 271,005.39, 406,427.07 and 81,415.05

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Solution

The fourth proportional to 271,005.39, 406,427.07 and 81,415.05 is: 122,098.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,005.39 : 406,427.07 = 81,415.05 : x
  2. Step 2: Convert to fraction form
    271,005.39/406,427.07 = 81,415.05/x
  3. Step 3: Cross multiply
    271,005.39x = 406,427.07 × 81,415.05
  4. Step 4: Simplify right side
    271,005.39x = 33,089,280,225.40
  5. Step 5: Solve for x
    x = 33,089,280,225.40/271,005.39
  6. Step 6: Final answer
    x = 122,098.24

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1.5x scale

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.