Home / 54,086.40-81,138.80-16,645.62

Finding the Fourth Proportional to 54,086.40, 81,138.80 and 16,645.62

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Solution

The fourth proportional to 54,086.40, 81,138.80 and 16,645.62 is: 24,971.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,086.40 : 81,138.80 = 16,645.62 : x
  2. Step 2: Convert to fraction form
    54,086.40/81,138.80 = 16,645.62/x
  3. Step 3: Cross multiply
    54,086.40x = 81,138.80 × 16,645.62
  4. Step 4: Simplify right side
    54,086.40x = 1,350,605,632.06
  5. Step 5: Solve for x
    x = 1,350,605,632.06/54,086.40
  6. Step 6: Final answer
    x = 24,971.26

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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.