Home / 57,845.60-86,768.40-57,231.20

Finding the Fourth Proportional to 57,845.60, 86,768.40 and 57,231.20

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Solution

The fourth proportional to 57,845.60, 86,768.40 and 57,231.20 is: 85,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,845.60 : 86,768.40 = 57,231.20 : x
  2. Step 2: Convert to fraction form
    57,845.60/86,768.40 = 57,231.20/x
  3. Step 3: Cross multiply
    57,845.60x = 86,768.40 × 57,231.20
  4. Step 4: Simplify right side
    57,845.60x = 4,965,859,654.08
  5. Step 5: Solve for x
    x = 4,965,859,654.08/57,845.60
  6. Step 6: Final answer
    x = 85,846.80

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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.