Home / 57,790.36-86,171.09-57,680.20

Finding the Fourth Proportional to 57,790.36, 86,171.09 and 57,680.20

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Solution

The fourth proportional to 57,790.36, 86,171.09 and 57,680.20 is: 86,006.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,790.36 : 86,171.09 = 57,680.20 : x
  2. Step 2: Convert to fraction form
    57,790.36/86,171.09 = 57,680.20/x
  3. Step 3: Cross multiply
    57,790.36x = 86,171.09 × 57,680.20
  4. Step 4: Simplify right side
    57,790.36x = 4,970,365,705.42
  5. Step 5: Solve for x
    x = 4,970,365,705.42/57,790.36
  6. Step 6: Final answer
    x = 86,006.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.