Home / 54,245.88-74,859.27-30,378.15

Finding the Fourth Proportional to 54,245.88, 74,859.27 and 30,378.15

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Solution

The fourth proportional to 54,245.88, 74,859.27 and 30,378.15 is: 41,921.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,245.88 : 74,859.27 = 30,378.15 : x
  2. Step 2: Convert to fraction form
    54,245.88/74,859.27 = 30,378.15/x
  3. Step 3: Cross multiply
    54,245.88x = 74,859.27 × 30,378.15
  4. Step 4: Simplify right side
    54,245.88x = 2,274,086,132.95
  5. Step 5: Solve for x
    x = 2,274,086,132.95/54,245.88
  6. Step 6: Final answer
    x = 41,921.82

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1.5x scale

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.