Home / 54,086.29-81,129.50-14,105.25

Finding the Fourth Proportional to 54,086.29, 81,129.50 and 14,105.25

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Solution

The fourth proportional to 54,086.29, 81,129.50 and 14,105.25 is: 21,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,086.29 : 81,129.50 = 14,105.25 : x
  2. Step 2: Convert to fraction form
    54,086.29/81,129.50 = 14,105.25/x
  3. Step 3: Cross multiply
    54,086.29x = 81,129.50 × 14,105.25
  4. Step 4: Simplify right side
    54,086.29x = 1,144,351,879.88
  5. Step 5: Solve for x
    x = 1,144,351,879.88/54,086.29
  6. Step 6: Final answer
    x = 21,157.89

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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.