Home / 76,936.38-115,100.91-58,270.20

Finding the Fourth Proportional to 76,936.38, 115,100.91 and 58,270.20

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Solution

The fourth proportional to 76,936.38, 115,100.91 and 58,270.20 is: 87,175.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,936.38 : 115,100.91 = 58,270.20 : x
  2. Step 2: Convert to fraction form
    76,936.38/115,100.91 = 58,270.20/x
  3. Step 3: Cross multiply
    76,936.38x = 115,100.91 × 58,270.20
  4. Step 4: Simplify right side
    76,936.38x = 6,706,953,045.88
  5. Step 5: Solve for x
    x = 6,706,953,045.88/76,936.38
  6. Step 6: Final answer
    x = 87,175.31

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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.