Home / 76,711.36-115,064.30-26,791.26

Finding the Fourth Proportional to 76,711.36, 115,064.30 and 26,791.26

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Solution

The fourth proportional to 76,711.36, 115,064.30 and 26,791.26 is: 40,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,711.36 : 115,064.30 = 26,791.26 : x
  2. Step 2: Convert to fraction form
    76,711.36/115,064.30 = 26,791.26/x
  3. Step 3: Cross multiply
    76,711.36x = 115,064.30 × 26,791.26
  4. Step 4: Simplify right side
    76,711.36x = 3,082,717,578.02
  5. Step 5: Solve for x
    x = 3,082,717,578.02/76,711.36
  6. Step 6: Final answer
    x = 40,185.93

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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.