Home / 80,575.11-120,810.83-52,840.71

Finding the Fourth Proportional to 80,575.11, 120,810.83 and 52,840.71

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Solution

The fourth proportional to 80,575.11, 120,810.83 and 52,840.71 is: 79,227.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,575.11 : 120,810.83 = 52,840.71 : x
  2. Step 2: Convert to fraction form
    80,575.11/120,810.83 = 52,840.71/x
  3. Step 3: Cross multiply
    80,575.11x = 120,810.83 × 52,840.71
  4. Step 4: Simplify right side
    80,575.11x = 6,383,729,768.69
  5. Step 5: Solve for x
    x = 6,383,729,768.69/80,575.11
  6. Step 6: Final answer
    x = 79,227.07

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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.