Home / 54,164.20-81,087.90-38,612.20

Finding the Fourth Proportional to 54,164.20, 81,087.90 and 38,612.20

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Solution

The fourth proportional to 54,164.20, 81,087.90 and 38,612.20 is: 57,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,164.20 : 81,087.90 = 38,612.20 : x
  2. Step 2: Convert to fraction form
    54,164.20/81,087.90 = 38,612.20/x
  3. Step 3: Cross multiply
    54,164.20x = 81,087.90 × 38,612.20
  4. Step 4: Simplify right side
    54,164.20x = 3,130,982,212.38
  5. Step 5: Solve for x
    x = 3,130,982,212.38/54,164.20
  6. Step 6: Final answer
    x = 57,805.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.