Home / 54,653.05-75,418.45-30,781.14

Finding the Fourth Proportional to 54,653.05, 75,418.45 and 30,781.14

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Solution

The fourth proportional to 54,653.05, 75,418.45 and 30,781.14 is: 42,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,653.05 : 75,418.45 = 30,781.14 : x
  2. Step 2: Convert to fraction form
    54,653.05/75,418.45 = 30,781.14/x
  3. Step 3: Cross multiply
    54,653.05x = 75,418.45 × 30,781.14
  4. Step 4: Simplify right side
    54,653.05x = 2,321,465,868.03
  5. Step 5: Solve for x
    x = 2,321,465,868.03/54,653.05
  6. Step 6: Final answer
    x = 42,476.42

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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.