Home / 83,351.20-114,993.68-53,129.56

Finding the Fourth Proportional to 83,351.20, 114,993.68 and 53,129.56

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Solution

The fourth proportional to 83,351.20, 114,993.68 and 53,129.56 is: 73,299.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,351.20 : 114,993.68 = 53,129.56 : x
  2. Step 2: Convert to fraction form
    83,351.20/114,993.68 = 53,129.56/x
  3. Step 3: Cross multiply
    83,351.20x = 114,993.68 × 53,129.56
  4. Step 4: Simplify right side
    83,351.20x = 6,109,563,621.18
  5. Step 5: Solve for x
    x = 6,109,563,621.18/83,351.20
  6. Step 6: Final answer
    x = 73,299.05

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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.