Home / 56,716.20-85,074.30-28,722.60

Finding the Fourth Proportional to 56,716.20, 85,074.30 and 28,722.60

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Solution

The fourth proportional to 56,716.20, 85,074.30 and 28,722.60 is: 43,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,716.20 : 85,074.30 = 28,722.60 : x
  2. Step 2: Convert to fraction form
    56,716.20/85,074.30 = 28,722.60/x
  3. Step 3: Cross multiply
    56,716.20x = 85,074.30 × 28,722.60
  4. Step 4: Simplify right side
    56,716.20x = 2,443,555,089.18
  5. Step 5: Solve for x
    x = 2,443,555,089.18/56,716.20
  6. Step 6: Final answer
    x = 43,083.90

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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.