Home / 79,554.36-109,757.69-49,328.80

Finding the Fourth Proportional to 79,554.36, 109,757.69 and 49,328.80

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Solution

The fourth proportional to 79,554.36, 109,757.69 and 49,328.80 is: 68,056.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,554.36 : 109,757.69 = 49,328.80 : x
  2. Step 2: Convert to fraction form
    79,554.36/109,757.69 = 49,328.80/x
  3. Step 3: Cross multiply
    79,554.36x = 109,757.69 × 49,328.80
  4. Step 4: Simplify right side
    79,554.36x = 5,414,215,398.99
  5. Step 5: Solve for x
    x = 5,414,215,398.99/79,554.36
  6. Step 6: Final answer
    x = 68,056.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.