Home / 54,122.62-74,691.55-30,839.78

Finding the Fourth Proportional to 54,122.62, 74,691.55 and 30,839.78

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Solution

The fourth proportional to 54,122.62, 74,691.55 and 30,839.78 is: 42,560.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,122.62 : 74,691.55 = 30,839.78 : x
  2. Step 2: Convert to fraction form
    54,122.62/74,691.55 = 30,839.78/x
  3. Step 3: Cross multiply
    54,122.62x = 74,691.55 × 30,839.78
  4. Step 4: Simplify right side
    54,122.62x = 2,303,470,969.86
  5. Step 5: Solve for x
    x = 2,303,470,969.86/54,122.62
  6. Step 6: Final answer
    x = 42,560.23

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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.