Home / 54,031.89-74,474.78-36,120.36

Finding the Fourth Proportional to 54,031.89, 74,474.78 and 36,120.36

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Solution

The fourth proportional to 54,031.89, 74,474.78 and 36,120.36 is: 49,786.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,031.89 : 74,474.78 = 36,120.36 : x
  2. Step 2: Convert to fraction form
    54,031.89/74,474.78 = 36,120.36/x
  3. Step 3: Cross multiply
    54,031.89x = 74,474.78 × 36,120.36
  4. Step 4: Simplify right side
    54,031.89x = 2,690,055,311.55
  5. Step 5: Solve for x
    x = 2,690,055,311.55/54,031.89
  6. Step 6: Final answer
    x = 49,786.44

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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.