Home / 90,845.47-136,286.43-31,665.25

Finding the Fourth Proportional to 90,845.47, 136,286.43 and 31,665.25

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Solution

The fourth proportional to 90,845.47, 136,286.43 and 31,665.25 is: 47,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,845.47 : 136,286.43 = 31,665.25 : x
  2. Step 2: Convert to fraction form
    90,845.47/136,286.43 = 31,665.25/x
  3. Step 3: Cross multiply
    90,845.47x = 136,286.43 × 31,665.25
  4. Step 4: Simplify right side
    90,845.47x = 4,315,543,877.56
  5. Step 5: Solve for x
    x = 4,315,543,877.56/90,845.47
  6. Step 6: Final answer
    x = 47,504.23

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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.