Home / 57,724.20-86,610.60-31,447.80

Finding the Fourth Proportional to 57,724.20, 86,610.60 and 31,447.80

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Solution

The fourth proportional to 57,724.20, 86,610.60 and 31,447.80 is: 47,184.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,724.20 : 86,610.60 = 31,447.80 : x
  2. Step 2: Convert to fraction form
    57,724.20/86,610.60 = 31,447.80/x
  3. Step 3: Cross multiply
    57,724.20x = 86,610.60 × 31,447.80
  4. Step 4: Simplify right side
    57,724.20x = 2,723,712,826.68
  5. Step 5: Solve for x
    x = 2,723,712,826.68/57,724.20
  6. Step 6: Final answer
    x = 47,184.94

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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.