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Finding the Fourth Proportional to 76,929, 115,412.97 and 23,623.62

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Solution

The fourth proportional to 76,929, 115,412.97 and 23,623.62 is: 35,441.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,929 : 115,412.97 = 23,623.62 : x
  2. Step 2: Convert to fraction form
    76,929/115,412.97 = 23,623.62/x
  3. Step 3: Cross multiply
    76,929x = 115,412.97 × 23,623.62
  4. Step 4: Simplify right side
    76,929x = 2,726,472,146.35
  5. Step 5: Solve for x
    x = 2,726,472,146.35/76,929
  6. Step 6: Final answer
    x = 35,441.41

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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.