Home / 57,723.60-86,658.30-31,090.80

Finding the Fourth Proportional to 57,723.60, 86,658.30 and 31,090.80

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Solution

The fourth proportional to 57,723.60, 86,658.30 and 31,090.80 is: 46,675.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,723.60 : 86,658.30 = 31,090.80 : x
  2. Step 2: Convert to fraction form
    57,723.60/86,658.30 = 31,090.80/x
  3. Step 3: Cross multiply
    57,723.60x = 86,658.30 × 31,090.80
  4. Step 4: Simplify right side
    57,723.60x = 2,694,275,873.64
  5. Step 5: Solve for x
    x = 2,694,275,873.64/57,723.60
  6. Step 6: Final answer
    x = 46,675.47

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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.