Home / 57,853.57-86,793.38-20,416.31

Finding the Fourth Proportional to 57,853.57, 86,793.38 and 20,416.31

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Solution

The fourth proportional to 57,853.57, 86,793.38 and 20,416.31 is: 30,629.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,853.57 : 86,793.38 = 20,416.31 : x
  2. Step 2: Convert to fraction form
    57,853.57/86,793.38 = 20,416.31/x
  3. Step 3: Cross multiply
    57,853.57x = 86,793.38 × 20,416.31
  4. Step 4: Simplify right side
    57,853.57x = 1,772,000,552.03
  5. Step 5: Solve for x
    x = 1,772,000,552.03/57,853.57
  6. Step 6: Final answer
    x = 30,629.06

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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.