Home / 75,685.22-104,445.62-43,872.58

Finding the Fourth Proportional to 75,685.22, 104,445.62 and 43,872.58

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Solution

The fourth proportional to 75,685.22, 104,445.62 and 43,872.58 is: 60,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,685.22 : 104,445.62 = 43,872.58 : x
  2. Step 2: Convert to fraction form
    75,685.22/104,445.62 = 43,872.58/x
  3. Step 3: Cross multiply
    75,685.22x = 104,445.62 × 43,872.58
  4. Step 4: Simplify right side
    75,685.22x = 4,582,298,819.10
  5. Step 5: Solve for x
    x = 4,582,298,819.10/75,685.22
  6. Step 6: Final answer
    x = 60,544.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.