Home / 55,304.28-76,321.70-31,429.56

Finding the Fourth Proportional to 55,304.28, 76,321.70 and 31,429.56

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Solution

The fourth proportional to 55,304.28, 76,321.70 and 31,429.56 is: 43,373.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,304.28 : 76,321.70 = 31,429.56 : x
  2. Step 2: Convert to fraction form
    55,304.28/76,321.70 = 31,429.56/x
  3. Step 3: Cross multiply
    55,304.28x = 76,321.70 × 31,429.56
  4. Step 4: Simplify right side
    55,304.28x = 2,398,757,449.45
  5. Step 5: Solve for x
    x = 2,398,757,449.45/55,304.28
  6. Step 6: Final answer
    x = 43,373.81

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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.