Home / 77,212.72-115,836.08-43,948.44

Finding the Fourth Proportional to 77,212.72, 115,836.08 and 43,948.44

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Solution

The fourth proportional to 77,212.72, 115,836.08 and 43,948.44 is: 65,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,212.72 : 115,836.08 = 43,948.44 : x
  2. Step 2: Convert to fraction form
    77,212.72/115,836.08 = 43,948.44/x
  3. Step 3: Cross multiply
    77,212.72x = 115,836.08 × 43,948.44
  4. Step 4: Simplify right side
    77,212.72x = 5,090,815,011.72
  5. Step 5: Solve for x
    x = 5,090,815,011.72/77,212.72
  6. Step 6: Final answer
    x = 65,932.34

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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.