Home / 57,901.05-86,858.58-20,453.46

Finding the Fourth Proportional to 57,901.05, 86,858.58 and 20,453.46

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Solution

The fourth proportional to 57,901.05, 86,858.58 and 20,453.46 is: 30,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,901.05 : 86,858.58 = 20,453.46 : x
  2. Step 2: Convert to fraction form
    57,901.05/86,858.58 = 20,453.46/x
  3. Step 3: Cross multiply
    57,901.05x = 86,858.58 × 20,453.46
  4. Step 4: Simplify right side
    57,901.05x = 1,776,558,274.54
  5. Step 5: Solve for x
    x = 1,776,558,274.54/57,901.05
  6. Step 6: Final answer
    x = 30,682.66

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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.