Home / 77,146.60-115,736.82-32,811.28

Finding the Fourth Proportional to 77,146.60, 115,736.82 and 32,811.28

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Solution

The fourth proportional to 77,146.60, 115,736.82 and 32,811.28 is: 49,224.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,146.60 : 115,736.82 = 32,811.28 : x
  2. Step 2: Convert to fraction form
    77,146.60/115,736.82 = 32,811.28/x
  3. Step 3: Cross multiply
    77,146.60x = 115,736.82 × 32,811.28
  4. Step 4: Simplify right side
    77,146.60x = 3,797,473,207.33
  5. Step 5: Solve for x
    x = 3,797,473,207.33/77,146.60
  6. Step 6: Final answer
    x = 49,224.12

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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.