Home / 76,359.44-105,002.36-66,270.37

Finding the Fourth Proportional to 76,359.44, 105,002.36 and 66,270.37

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Solution

The fourth proportional to 76,359.44, 105,002.36 and 66,270.37 is: 91,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,359.44 : 105,002.36 = 66,270.37 : x
  2. Step 2: Convert to fraction form
    76,359.44/105,002.36 = 66,270.37/x
  3. Step 3: Cross multiply
    76,359.44x = 105,002.36 × 66,270.37
  4. Step 4: Simplify right side
    76,359.44x = 6,958,544,688.64
  5. Step 5: Solve for x
    x = 6,958,544,688.64/76,359.44
  6. Step 6: Final answer
    x = 91,128.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.