Home / 54,321.07-74,965.26-30,447.58

Finding the Fourth Proportional to 54,321.07, 74,965.26 and 30,447.58

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Solution

The fourth proportional to 54,321.07, 74,965.26 and 30,447.58 is: 42,018.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,321.07 : 74,965.26 = 30,447.58 : x
  2. Step 2: Convert to fraction form
    54,321.07/74,965.26 = 30,447.58/x
  3. Step 3: Cross multiply
    54,321.07x = 74,965.26 × 30,447.58
  4. Step 4: Simplify right side
    54,321.07x = 2,282,510,751.07
  5. Step 5: Solve for x
    x = 2,282,510,751.07/54,321.07
  6. Step 6: Final answer
    x = 42,018.88

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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.