Home / 57,581.64-86,365.58-20,138.84

Finding the Fourth Proportional to 57,581.64, 86,365.58 and 20,138.84

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Solution

The fourth proportional to 57,581.64, 86,365.58 and 20,138.84 is: 30,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,581.64 : 86,365.58 = 20,138.84 : x
  2. Step 2: Convert to fraction form
    57,581.64/86,365.58 = 20,138.84/x
  3. Step 3: Cross multiply
    57,581.64x = 86,365.58 × 20,138.84
  4. Step 4: Simplify right side
    57,581.64x = 1,739,302,597.13
  5. Step 5: Solve for x
    x = 1,739,302,597.13/57,581.64
  6. Step 6: Final answer
    x = 30,205.85

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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.