Home / 77,780.72-116,716.39-32,799.32

Finding the Fourth Proportional to 77,780.72, 116,716.39 and 32,799.32

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Solution

The fourth proportional to 77,780.72, 116,716.39 and 32,799.32 is: 49,218.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,780.72 : 116,716.39 = 32,799.32 : x
  2. Step 2: Convert to fraction form
    77,780.72/116,716.39 = 32,799.32/x
  3. Step 3: Cross multiply
    77,780.72x = 116,716.39 × 32,799.32
  4. Step 4: Simplify right side
    77,780.72x = 3,828,218,224.85
  5. Step 5: Solve for x
    x = 3,828,218,224.85/77,780.72
  6. Step 6: Final answer
    x = 49,218.09

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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.