Home / 75,639.51-104,381.66-41,647.29

Finding the Fourth Proportional to 75,639.51, 104,381.66 and 41,647.29

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Solution

The fourth proportional to 75,639.51, 104,381.66 and 41,647.29 is: 57,472.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,639.51 : 104,381.66 = 41,647.29 : x
  2. Step 2: Convert to fraction form
    75,639.51/104,381.66 = 41,647.29/x
  3. Step 3: Cross multiply
    75,639.51x = 104,381.66 × 41,647.29
  4. Step 4: Simplify right side
    75,639.51x = 4,347,212,977.39
  5. Step 5: Solve for x
    x = 4,347,212,977.39/75,639.51
  6. Step 6: Final answer
    x = 57,472.78

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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.