Home / 55,268.12-76,269.96-31,394.81

Finding the Fourth Proportional to 55,268.12, 76,269.96 and 31,394.81

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Solution

The fourth proportional to 55,268.12, 76,269.96 and 31,394.81 is: 43,324.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,268.12 : 76,269.96 = 31,394.81 : x
  2. Step 2: Convert to fraction form
    55,268.12/76,269.96 = 31,394.81/x
  3. Step 3: Cross multiply
    55,268.12x = 76,269.96 × 31,394.81
  4. Step 4: Simplify right side
    55,268.12x = 2,394,480,521.56
  5. Step 5: Solve for x
    x = 2,394,480,521.56/55,268.12
  6. Step 6: Final answer
    x = 43,324.81

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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.