Home / 81,478.50-122,241.51-34,736.10

Finding the Fourth Proportional to 81,478.50, 122,241.51 and 34,736.10

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Solution

The fourth proportional to 81,478.50, 122,241.51 and 34,736.10 is: 52,114.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,478.50 : 122,241.51 = 34,736.10 : x
  2. Step 2: Convert to fraction form
    81,478.50/122,241.51 = 34,736.10/x
  3. Step 3: Cross multiply
    81,478.50x = 122,241.51 × 34,736.10
  4. Step 4: Simplify right side
    81,478.50x = 4,246,193,315.51
  5. Step 5: Solve for x
    x = 4,246,193,315.51/81,478.50
  6. Step 6: Final answer
    x = 52,114.28

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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.