Home / 53,850.36-80,769.78-18,790.68

Finding the Fourth Proportional to 53,850.36, 80,769.78 and 18,790.68

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Solution

The fourth proportional to 53,850.36, 80,769.78 and 18,790.68 is: 28,184.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,850.36 : 80,769.78 = 18,790.68 : x
  2. Step 2: Convert to fraction form
    53,850.36/80,769.78 = 18,790.68/x
  3. Step 3: Cross multiply
    53,850.36x = 80,769.78 × 18,790.68
  4. Step 4: Simplify right side
    53,850.36x = 1,517,719,089.65
  5. Step 5: Solve for x
    x = 1,517,719,089.65/53,850.36
  6. Step 6: Final answer
    x = 28,184.01

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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.