Home / 75,910.68-104,787.64-49,055.40

Finding the Fourth Proportional to 75,910.68, 104,787.64 and 49,055.40

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Solution

The fourth proportional to 75,910.68, 104,787.64 and 49,055.40 is: 67,716.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,910.68 : 104,787.64 = 49,055.40 : x
  2. Step 2: Convert to fraction form
    75,910.68/104,787.64 = 49,055.40/x
  3. Step 3: Cross multiply
    75,910.68x = 104,787.64 × 49,055.40
  4. Step 4: Simplify right side
    75,910.68x = 5,140,399,595.26
  5. Step 5: Solve for x
    x = 5,140,399,595.26/75,910.68
  6. Step 6: Final answer
    x = 67,716.42

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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.