Home / 65,784.96-90,781.44-35,976.96

Finding the Fourth Proportional to 65,784.96, 90,781.44 and 35,976.96

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Solution

The fourth proportional to 65,784.96, 90,781.44 and 35,976.96 is: 49,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,784.96 : 90,781.44 = 35,976.96 : x
  2. Step 2: Convert to fraction form
    65,784.96/90,781.44 = 35,976.96/x
  3. Step 3: Cross multiply
    65,784.96x = 90,781.44 × 35,976.96
  4. Step 4: Simplify right side
    65,784.96x = 3,266,040,235.62
  5. Step 5: Solve for x
    x = 3,266,040,235.62/65,784.96
  6. Step 6: Final answer
    x = 49,647.22

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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.