Home / 77,247.50-115,777.67-32,780.84

Finding the Fourth Proportional to 77,247.50, 115,777.67 and 32,780.84

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Solution

The fourth proportional to 77,247.50, 115,777.67 and 32,780.84 is: 49,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,247.50 : 115,777.67 = 32,780.84 : x
  2. Step 2: Convert to fraction form
    77,247.50/115,777.67 = 32,780.84/x
  3. Step 3: Cross multiply
    77,247.50x = 115,777.67 × 32,780.84
  4. Step 4: Simplify right side
    77,247.50x = 3,795,288,533.05
  5. Step 5: Solve for x
    x = 3,795,288,533.05/77,247.50
  6. Step 6: Final answer
    x = 49,131.54

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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.