Home / 76,081.13-114,099.38-28,662

Finding the Fourth Proportional to 76,081.13, 114,099.38 and 28,662

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Solution

The fourth proportional to 76,081.13, 114,099.38 and 28,662 is: 42,984.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,081.13 : 114,099.38 = 28,662 : x
  2. Step 2: Convert to fraction form
    76,081.13/114,099.38 = 28,662/x
  3. Step 3: Cross multiply
    76,081.13x = 114,099.38 × 28,662
  4. Step 4: Simplify right side
    76,081.13x = 3,270,316,286.25
  5. Step 5: Solve for x
    x = 3,270,316,286.25/76,081.13
  6. Step 6: Final answer
    x = 42,984.59

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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.