Home / 85,944.75-128,968.97-36,696.75

Finding the Fourth Proportional to 85,944.75, 128,968.97 and 36,696.75

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Solution

The fourth proportional to 85,944.75, 128,968.97 and 36,696.75 is: 55,067.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,944.75 : 128,968.97 = 36,696.75 : x
  2. Step 2: Convert to fraction form
    85,944.75/128,968.97 = 36,696.75/x
  3. Step 3: Cross multiply
    85,944.75x = 128,968.97 × 36,696.75
  4. Step 4: Simplify right side
    85,944.75x = 4,732,741,866.36
  5. Step 5: Solve for x
    x = 4,732,741,866.36/85,944.75
  6. Step 6: Final answer
    x = 55,067.26

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1.5x scale

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.