Home / 54,320.45-74,961.97-30,447.12

Finding the Fourth Proportional to 54,320.45, 74,961.97 and 30,447.12

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Solution

The fourth proportional to 54,320.45, 74,961.97 and 30,447.12 is: 42,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,320.45 : 74,961.97 = 30,447.12 : x
  2. Step 2: Convert to fraction form
    54,320.45/74,961.97 = 30,447.12/x
  3. Step 3: Cross multiply
    54,320.45x = 74,961.97 × 30,447.12
  4. Step 4: Simplify right side
    54,320.45x = 2,282,376,096.03
  5. Step 5: Solve for x
    x = 2,282,376,096.03/54,320.45
  6. Step 6: Final answer
    x = 42,016.88

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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.