Home / 80,630.60-111,227.72-47,906.34

Finding the Fourth Proportional to 80,630.60, 111,227.72 and 47,906.34

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Solution

The fourth proportional to 80,630.60, 111,227.72 and 47,906.34 is: 66,085.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,630.60 : 111,227.72 = 47,906.34 : x
  2. Step 2: Convert to fraction form
    80,630.60/111,227.72 = 47,906.34/x
  3. Step 3: Cross multiply
    80,630.60x = 111,227.72 × 47,906.34
  4. Step 4: Simplify right side
    80,630.60x = 5,328,512,971.74
  5. Step 5: Solve for x
    x = 5,328,512,971.74/80,630.60
  6. Step 6: Final answer
    x = 66,085.49

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1.5x scale

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.