Home / 90,751.26-136,043.87-38,164.44

Finding the Fourth Proportional to 90,751.26, 136,043.87 and 38,164.44

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Solution

The fourth proportional to 90,751.26, 136,043.87 and 38,164.44 is: 57,211.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,751.26 : 136,043.87 = 38,164.44 : x
  2. Step 2: Convert to fraction form
    90,751.26/136,043.87 = 38,164.44/x
  3. Step 3: Cross multiply
    90,751.26x = 136,043.87 × 38,164.44
  4. Step 4: Simplify right side
    90,751.26x = 5,192,037,923.16
  5. Step 5: Solve for x
    x = 5,192,037,923.16/90,751.26
  6. Step 6: Final answer
    x = 57,211.74

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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.