Home / 90,955.14-136,452.69-27,780.54

Finding the Fourth Proportional to 90,955.14, 136,452.69 and 27,780.54

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Solution

The fourth proportional to 90,955.14, 136,452.69 and 27,780.54 is: 41,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,955.14 : 136,452.69 = 27,780.54 : x
  2. Step 2: Convert to fraction form
    90,955.14/136,452.69 = 27,780.54/x
  3. Step 3: Cross multiply
    90,955.14x = 136,452.69 × 27,780.54
  4. Step 4: Simplify right side
    90,955.14x = 3,790,729,412.65
  5. Step 5: Solve for x
    x = 3,790,729,412.65/90,955.14
  6. Step 6: Final answer
    x = 41,676.91

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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.