Home / 83,640.44-125,365.21-33,688.55

Finding the Fourth Proportional to 83,640.44, 125,365.21 and 33,688.55

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Solution

The fourth proportional to 83,640.44, 125,365.21 and 33,688.55 is: 50,494.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,640.44 : 125,365.21 = 33,688.55 : x
  2. Step 2: Convert to fraction form
    83,640.44/125,365.21 = 33,688.55/x
  3. Step 3: Cross multiply
    83,640.44x = 125,365.21 × 33,688.55
  4. Step 4: Simplify right side
    83,640.44x = 4,223,371,434.30
  5. Step 5: Solve for x
    x = 4,223,371,434.30/83,640.44
  6. Step 6: Final answer
    x = 50,494.37

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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.