Home / 76,940.37-115,415.42-32,561.28

Finding the Fourth Proportional to 76,940.37, 115,415.42 and 32,561.28

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Solution

The fourth proportional to 76,940.37, 115,415.42 and 32,561.28 is: 48,843.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,940.37 : 115,415.42 = 32,561.28 : x
  2. Step 2: Convert to fraction form
    76,940.37/115,415.42 = 32,561.28/x
  3. Step 3: Cross multiply
    76,940.37x = 115,415.42 × 32,561.28
  4. Step 4: Simplify right side
    76,940.37x = 3,758,073,644.13
  5. Step 5: Solve for x
    x = 3,758,073,644.13/76,940.37
  6. Step 6: Final answer
    x = 48,843.98

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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.