Home / 55,055.26-75,976.92-31,181.35

Finding the Fourth Proportional to 55,055.26, 75,976.92 and 31,181.35

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Solution

The fourth proportional to 55,055.26, 75,976.92 and 31,181.35 is: 43,030.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,055.26 : 75,976.92 = 31,181.35 : x
  2. Step 2: Convert to fraction form
    55,055.26/75,976.92 = 31,181.35/x
  3. Step 3: Cross multiply
    55,055.26x = 75,976.92 × 31,181.35
  4. Step 4: Simplify right side
    55,055.26x = 2,369,062,934.44
  5. Step 5: Solve for x
    x = 2,369,062,934.44/55,055.26
  6. Step 6: Final answer
    x = 43,030.64

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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.