Home / 90,966-136,467.29-38,375.26

Finding the Fourth Proportional to 90,966, 136,467.29 and 38,375.26

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Solution

The fourth proportional to 90,966, 136,467.29 and 38,375.26 is: 57,570.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,966 : 136,467.29 = 38,375.26 : x
  2. Step 2: Convert to fraction form
    90,966/136,467.29 = 38,375.26/x
  3. Step 3: Cross multiply
    90,966x = 136,467.29 × 38,375.26
  4. Step 4: Simplify right side
    90,966x = 5,236,967,735.25
  5. Step 5: Solve for x
    x = 5,236,967,735.25/90,966
  6. Step 6: Final answer
    x = 57,570.61

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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.