Home / 91,236.03-136,857.85-31,305.71

Finding the Fourth Proportional to 91,236.03, 136,857.85 and 31,305.71

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Solution

The fourth proportional to 91,236.03, 136,857.85 and 31,305.71 is: 46,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,236.03 : 136,857.85 = 31,305.71 : x
  2. Step 2: Convert to fraction form
    91,236.03/136,857.85 = 31,305.71/x
  3. Step 3: Cross multiply
    91,236.03x = 136,857.85 × 31,305.71
  4. Step 4: Simplify right side
    91,236.03x = 4,284,431,924.05
  5. Step 5: Solve for x
    x = 4,284,431,924.05/91,236.03
  6. Step 6: Final answer
    x = 46,959.87

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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.