Home / 57,216.20-85,803.24-19,766.66

Finding the Fourth Proportional to 57,216.20, 85,803.24 and 19,766.66

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Solution

The fourth proportional to 57,216.20, 85,803.24 and 19,766.66 is: 29,642.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.20 : 85,803.24 = 19,766.66 : x
  2. Step 2: Convert to fraction form
    57,216.20/85,803.24 = 19,766.66/x
  3. Step 3: Cross multiply
    57,216.20x = 85,803.24 × 19,766.66
  4. Step 4: Simplify right side
    57,216.20x = 1,696,043,471.98
  5. Step 5: Solve for x
    x = 1,696,043,471.98/57,216.20
  6. Step 6: Final answer
    x = 29,642.71

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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.