Home / 77,705.49-116,540.94-30,321.84

Finding the Fourth Proportional to 77,705.49, 116,540.94 and 30,321.84

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Solution

The fourth proportional to 77,705.49, 116,540.94 and 30,321.84 is: 45,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,705.49 : 116,540.94 = 30,321.84 : x
  2. Step 2: Convert to fraction form
    77,705.49/116,540.94 = 30,321.84/x
  3. Step 3: Cross multiply
    77,705.49x = 116,540.94 × 30,321.84
  4. Step 4: Simplify right side
    77,705.49x = 3,533,735,736.13
  5. Step 5: Solve for x
    x = 3,533,735,736.13/77,705.49
  6. Step 6: Final answer
    x = 45,476.01

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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.