Home / 276,403.09-414,606.96-76,739.05

Finding the Fourth Proportional to 276,403.09, 414,606.96 and 76,739.05

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Solution

The fourth proportional to 276,403.09, 414,606.96 and 76,739.05 is: 115,109.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,403.09 : 414,606.96 = 76,739.05 : x
  2. Step 2: Convert to fraction form
    276,403.09/414,606.96 = 76,739.05/x
  3. Step 3: Cross multiply
    276,403.09x = 414,606.96 × 76,739.05
  4. Step 4: Simplify right side
    276,403.09x = 31,816,542,909.50
  5. Step 5: Solve for x
    x = 31,816,542,909.50/276,403.09
  6. Step 6: Final answer
    x = 115,109.22

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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.