Home / 75,890.40-113,828.16-33,771.20

Finding the Fourth Proportional to 75,890.40, 113,828.16 and 33,771.20

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Solution

The fourth proportional to 75,890.40, 113,828.16 and 33,771.20 is: 50,653.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,890.40 : 113,828.16 = 33,771.20 : x
  2. Step 2: Convert to fraction form
    75,890.40/113,828.16 = 33,771.20/x
  3. Step 3: Cross multiply
    75,890.40x = 113,828.16 × 33,771.20
  4. Step 4: Simplify right side
    75,890.40x = 3,844,113,556.99
  5. Step 5: Solve for x
    x = 3,844,113,556.99/75,890.40
  6. Step 6: Final answer
    x = 50,653.49

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1.5x scale

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.