Home / 55,418.06-76,480.82-31,544.72

Finding the Fourth Proportional to 55,418.06, 76,480.82 and 31,544.72

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Solution

The fourth proportional to 55,418.06, 76,480.82 and 31,544.72 is: 43,533.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,418.06 : 76,480.82 = 31,544.72 : x
  2. Step 2: Convert to fraction form
    55,418.06/76,480.82 = 31,544.72/x
  3. Step 3: Cross multiply
    55,418.06x = 76,480.82 × 31,544.72
  4. Step 4: Simplify right side
    55,418.06x = 2,412,565,512.14
  5. Step 5: Solve for x
    x = 2,412,565,512.14/55,418.06
  6. Step 6: Final answer
    x = 43,533.93

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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.