Home / 75,621.74-113,357.47-36,132.75

Finding the Fourth Proportional to 75,621.74, 113,357.47 and 36,132.75

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Solution

The fourth proportional to 75,621.74, 113,357.47 and 36,132.75 is: 54,163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,621.74 : 113,357.47 = 36,132.75 : x
  2. Step 2: Convert to fraction form
    75,621.74/113,357.47 = 36,132.75/x
  3. Step 3: Cross multiply
    75,621.74x = 113,357.47 × 36,132.75
  4. Step 4: Simplify right side
    75,621.74x = 4,095,917,124.14
  5. Step 5: Solve for x
    x = 4,095,917,124.14/75,621.74
  6. Step 6: Final answer
    x = 54,163.22

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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.