Home / 42,236.96-58,311.16-31,540.64

Finding the Fourth Proportional to 42,236.96, 58,311.16 and 31,540.64

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Solution

The fourth proportional to 42,236.96, 58,311.16 and 31,540.64 is: 43,544.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,236.96 : 58,311.16 = 31,540.64 : x
  2. Step 2: Convert to fraction form
    42,236.96/58,311.16 = 31,540.64/x
  3. Step 3: Cross multiply
    42,236.96x = 58,311.16 × 31,540.64
  4. Step 4: Simplify right side
    42,236.96x = 1,839,171,305.54
  5. Step 5: Solve for x
    x = 1,839,171,305.54/42,236.96
  6. Step 6: Final answer
    x = 43,544.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.