Home / 81,532.55-122,299.28-37,128.35

Finding the Fourth Proportional to 81,532.55, 122,299.28 and 37,128.35

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Solution

The fourth proportional to 81,532.55, 122,299.28 and 37,128.35 is: 55,692.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,532.55 : 122,299.28 = 37,128.35 : x
  2. Step 2: Convert to fraction form
    81,532.55/122,299.28 = 37,128.35/x
  3. Step 3: Cross multiply
    81,532.55x = 122,299.28 × 37,128.35
  4. Step 4: Simplify right side
    81,532.55x = 4,540,770,472.59
  5. Step 5: Solve for x
    x = 4,540,770,472.59/81,532.55
  6. Step 6: Final answer
    x = 55,692.73

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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.