Home / 77,896.10-116,844.08-18,731.75

Finding the Fourth Proportional to 77,896.10, 116,844.08 and 18,731.75

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Solution

The fourth proportional to 77,896.10, 116,844.08 and 18,731.75 is: 28,097.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,896.10 : 116,844.08 = 18,731.75 : x
  2. Step 2: Convert to fraction form
    77,896.10/116,844.08 = 18,731.75/x
  3. Step 3: Cross multiply
    77,896.10x = 116,844.08 × 18,731.75
  4. Step 4: Simplify right side
    77,896.10x = 2,188,694,001.88
  5. Step 5: Solve for x
    x = 2,188,694,001.88/77,896.10
  6. Step 6: Final answer
    x = 28,097.61

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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.