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Finding the Fourth Proportional to 80,610.67, 120,918.70 and 36,237.55

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Solution

The fourth proportional to 80,610.67, 120,918.70 and 36,237.55 is: 54,357.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,610.67 : 120,918.70 = 36,237.55 : x
  2. Step 2: Convert to fraction form
    80,610.67/120,918.70 = 36,237.55/x
  3. Step 3: Cross multiply
    80,610.67x = 120,918.70 × 36,237.55
  4. Step 4: Simplify right side
    80,610.67x = 4,381,797,437.19
  5. Step 5: Solve for x
    x = 4,381,797,437.19/80,610.67
  6. Step 6: Final answer
    x = 54,357.54

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1.5x scale

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.