Home / 54,178.05-74,761.65-30,300.11

Finding the Fourth Proportional to 54,178.05, 74,761.65 and 30,300.11

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Solution

The fourth proportional to 54,178.05, 74,761.65 and 30,300.11 is: 41,811.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,178.05 : 74,761.65 = 30,300.11 : x
  2. Step 2: Convert to fraction form
    54,178.05/74,761.65 = 30,300.11/x
  3. Step 3: Cross multiply
    54,178.05x = 74,761.65 × 30,300.11
  4. Step 4: Simplify right side
    54,178.05x = 2,265,286,218.78
  5. Step 5: Solve for x
    x = 2,265,286,218.78/54,178.05
  6. Step 6: Final answer
    x = 41,811.88

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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.