Home / 54,653.55-75,419.15-30,781.64

Finding the Fourth Proportional to 54,653.55, 75,419.15 and 30,781.64

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Solution

The fourth proportional to 54,653.55, 75,419.15 and 30,781.64 is: 42,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,653.55 : 75,419.15 = 30,781.64 : x
  2. Step 2: Convert to fraction form
    54,653.55/75,419.15 = 30,781.64/x
  3. Step 3: Cross multiply
    54,653.55x = 75,419.15 × 30,781.64
  4. Step 4: Simplify right side
    54,653.55x = 2,321,524,593.40
  5. Step 5: Solve for x
    x = 2,321,524,593.40/54,653.55
  6. Step 6: Final answer
    x = 42,477.11

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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.