Home / 83,615.49-125,369.87-55,119.56

Finding the Fourth Proportional to 83,615.49, 125,369.87 and 55,119.56

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Solution

The fourth proportional to 83,615.49, 125,369.87 and 55,119.56 is: 82,644.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,615.49 : 125,369.87 = 55,119.56 : x
  2. Step 2: Convert to fraction form
    83,615.49/125,369.87 = 55,119.56/x
  3. Step 3: Cross multiply
    83,615.49x = 125,369.87 × 55,119.56
  4. Step 4: Simplify right side
    83,615.49x = 6,910,331,325.92
  5. Step 5: Solve for x
    x = 6,910,331,325.92/83,615.49
  6. Step 6: Final answer
    x = 82,644.15

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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.