Home / 77,096.62-115,634.58-20,940.52

Finding the Fourth Proportional to 77,096.62, 115,634.58 and 20,940.52

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Solution

The fourth proportional to 77,096.62, 115,634.58 and 20,940.52 is: 31,407.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,096.62 : 115,634.58 = 20,940.52 : x
  2. Step 2: Convert to fraction form
    77,096.62/115,634.58 = 20,940.52/x
  3. Step 3: Cross multiply
    77,096.62x = 115,634.58 × 20,940.52
  4. Step 4: Simplify right side
    77,096.62x = 2,421,448,235.18
  5. Step 5: Solve for x
    x = 2,421,448,235.18/77,096.62
  6. Step 6: Final answer
    x = 31,407.97

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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.