Home / 57,021.68-78,682.92-33,153.68

Finding the Fourth Proportional to 57,021.68, 78,682.92 and 33,153.68

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Solution

The fourth proportional to 57,021.68, 78,682.92 and 33,153.68 is: 45,748.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.68 : 78,682.92 = 33,153.68 : x
  2. Step 2: Convert to fraction form
    57,021.68/78,682.92 = 33,153.68/x
  3. Step 3: Cross multiply
    57,021.68x = 78,682.92 × 33,153.68
  4. Step 4: Simplify right side
    57,021.68x = 2,608,628,351.15
  5. Step 5: Solve for x
    x = 2,608,628,351.15/57,021.68
  6. Step 6: Final answer
    x = 45,748.01

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1.5x scale

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.