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Finding the Fourth Proportional to 77,929.38, 116,868.06 and 25,326

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Solution

The fourth proportional to 77,929.38, 116,868.06 and 25,326 is: 37,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,929.38 : 116,868.06 = 25,326 : x
  2. Step 2: Convert to fraction form
    77,929.38/116,868.06 = 25,326/x
  3. Step 3: Cross multiply
    77,929.38x = 116,868.06 × 25,326
  4. Step 4: Simplify right side
    77,929.38x = 2,959,800,487.56
  5. Step 5: Solve for x
    x = 2,959,800,487.56/77,929.38
  6. Step 6: Final answer
    x = 37,980.55

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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.