Home / 78,933.11-118,361.27-26,324.82

Finding the Fourth Proportional to 78,933.11, 118,361.27 and 26,324.82

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Solution

The fourth proportional to 78,933.11, 118,361.27 and 26,324.82 is: 39,474.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,933.11 : 118,361.27 = 26,324.82 : x
  2. Step 2: Convert to fraction form
    78,933.11/118,361.27 = 26,324.82/x
  3. Step 3: Cross multiply
    78,933.11x = 118,361.27 × 26,324.82
  4. Step 4: Simplify right side
    78,933.11x = 3,115,838,996.10
  5. Step 5: Solve for x
    x = 3,115,838,996.10/78,933.11
  6. Step 6: Final answer
    x = 39,474.43

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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.