Home / 57,790.72-86,698.34-20,349.28

Finding the Fourth Proportional to 57,790.72, 86,698.34 and 20,349.28

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Solution

The fourth proportional to 57,790.72, 86,698.34 and 20,349.28 is: 30,528.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,790.72 : 86,698.34 = 20,349.28 : x
  2. Step 2: Convert to fraction form
    57,790.72/86,698.34 = 20,349.28/x
  3. Step 3: Cross multiply
    57,790.72x = 86,698.34 × 20,349.28
  4. Step 4: Simplify right side
    57,790.72x = 1,764,248,796.20
  5. Step 5: Solve for x
    x = 1,764,248,796.20/57,790.72
  6. Step 6: Final answer
    x = 30,528.24

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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.