Home / 92,629.21-127,757.79-79,730.44

Finding the Fourth Proportional to 92,629.21, 127,757.79 and 79,730.44

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Solution

The fourth proportional to 92,629.21, 127,757.79 and 79,730.44 is: 109,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,629.21 : 127,757.79 = 79,730.44 : x
  2. Step 2: Convert to fraction form
    92,629.21/127,757.79 = 79,730.44/x
  3. Step 3: Cross multiply
    92,629.21x = 127,757.79 × 79,730.44
  4. Step 4: Simplify right side
    92,629.21x = 10,186,184,653.43
  5. Step 5: Solve for x
    x = 10,186,184,653.43/92,629.21
  6. Step 6: Final answer
    x = 109,967.31

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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.