Home / 54,738.36-81,902.50-38,979.80

Finding the Fourth Proportional to 54,738.36, 81,902.50 and 38,979.80

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Solution

The fourth proportional to 54,738.36, 81,902.50 and 38,979.80 is: 58,323.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,738.36 : 81,902.50 = 38,979.80 : x
  2. Step 2: Convert to fraction form
    54,738.36/81,902.50 = 38,979.80/x
  3. Step 3: Cross multiply
    54,738.36x = 81,902.50 × 38,979.80
  4. Step 4: Simplify right side
    54,738.36x = 3,192,543,069.50
  5. Step 5: Solve for x
    x = 3,192,543,069.50/54,738.36
  6. Step 6: Final answer
    x = 58,323.69

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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.