Home / 57,680.06-86,558.69-20,240.30

Finding the Fourth Proportional to 57,680.06, 86,558.69 and 20,240.30

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Solution

The fourth proportional to 57,680.06, 86,558.69 and 20,240.30 is: 30,374.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,680.06 : 86,558.69 = 20,240.30 : x
  2. Step 2: Convert to fraction form
    57,680.06/86,558.69 = 20,240.30/x
  3. Step 3: Cross multiply
    57,680.06x = 86,558.69 × 20,240.30
  4. Step 4: Simplify right side
    57,680.06x = 1,751,974,120.20
  5. Step 5: Solve for x
    x = 1,751,974,120.20/57,680.06
  6. Step 6: Final answer
    x = 30,374.00

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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.