Home / 90,779.10-136,169.61-27,609.51

Finding the Fourth Proportional to 90,779.10, 136,169.61 and 27,609.51

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Solution

The fourth proportional to 90,779.10, 136,169.61 and 27,609.51 is: 41,414.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,779.10 : 136,169.61 = 27,609.51 : x
  2. Step 2: Convert to fraction form
    90,779.10/136,169.61 = 27,609.51/x
  3. Step 3: Cross multiply
    90,779.10x = 136,169.61 × 27,609.51
  4. Step 4: Simplify right side
    90,779.10x = 3,759,576,208.99
  5. Step 5: Solve for x
    x = 3,759,576,208.99/90,779.10
  6. Step 6: Final answer
    x = 41,414.56

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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.