Home / 81,975.38-122,856.56-36,963.68

Finding the Fourth Proportional to 81,975.38, 122,856.56 and 36,963.68

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Solution

The fourth proportional to 81,975.38, 122,856.56 and 36,963.68 is: 55,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,975.38 : 122,856.56 = 36,963.68 : x
  2. Step 2: Convert to fraction form
    81,975.38/122,856.56 = 36,963.68/x
  3. Step 3: Cross multiply
    81,975.38x = 122,856.56 × 36,963.68
  4. Step 4: Simplify right side
    81,975.38x = 4,541,230,692.06
  5. Step 5: Solve for x
    x = 4,541,230,692.06/81,975.38
  6. Step 6: Final answer
    x = 55,397.49

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1.5x scale

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.