Home / 57,862.60-86,777.70-18,431.80

Finding the Fourth Proportional to 57,862.60, 86,777.70 and 18,431.80

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Solution

The fourth proportional to 57,862.60, 86,777.70 and 18,431.80 is: 27,642.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,862.60 : 86,777.70 = 18,431.80 : x
  2. Step 2: Convert to fraction form
    57,862.60/86,777.70 = 18,431.80/x
  3. Step 3: Cross multiply
    57,862.60x = 86,777.70 × 18,431.80
  4. Step 4: Simplify right side
    57,862.60x = 1,599,469,210.86
  5. Step 5: Solve for x
    x = 1,599,469,210.86/57,862.60
  6. Step 6: Final answer
    x = 27,642.54

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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.