Home / 79,105.68-118,621.62-45,835.29

Finding the Fourth Proportional to 79,105.68, 118,621.62 and 45,835.29

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Solution

The fourth proportional to 79,105.68, 118,621.62 and 45,835.29 is: 68,731.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,105.68 : 118,621.62 = 45,835.29 : x
  2. Step 2: Convert to fraction form
    79,105.68/118,621.62 = 45,835.29/x
  3. Step 3: Cross multiply
    79,105.68x = 118,621.62 × 45,835.29
  4. Step 4: Simplify right side
    79,105.68x = 5,437,056,352.97
  5. Step 5: Solve for x
    x = 5,437,056,352.97/79,105.68
  6. Step 6: Final answer
    x = 68,731.55

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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.