Home / 55,243.68-76,241.16-31,377.84

Finding the Fourth Proportional to 55,243.68, 76,241.16 and 31,377.84

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Solution

The fourth proportional to 55,243.68, 76,241.16 and 31,377.84 is: 43,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,243.68 : 76,241.16 = 31,377.84 : x
  2. Step 2: Convert to fraction form
    55,243.68/76,241.16 = 31,377.84/x
  3. Step 3: Cross multiply
    55,243.68x = 76,241.16 × 31,377.84
  4. Step 4: Simplify right side
    55,243.68x = 2,392,282,919.89
  5. Step 5: Solve for x
    x = 2,392,282,919.89/55,243.68
  6. Step 6: Final answer
    x = 43,304.19

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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.