Home / 77,212.74-115,789.94-32,860.38

Finding the Fourth Proportional to 77,212.74, 115,789.94 and 32,860.38

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Solution

The fourth proportional to 77,212.74, 115,789.94 and 32,860.38 is: 49,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,212.74 : 115,789.94 = 32,860.38 : x
  2. Step 2: Convert to fraction form
    77,212.74/115,789.94 = 32,860.38/x
  3. Step 3: Cross multiply
    77,212.74x = 115,789.94 × 32,860.38
  4. Step 4: Simplify right side
    77,212.74x = 3,804,901,428.58
  5. Step 5: Solve for x
    x = 3,804,901,428.58/77,212.74
  6. Step 6: Final answer
    x = 49,278.16

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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.