Home / 80,629.60-111,226.34-47,905.34

Finding the Fourth Proportional to 80,629.60, 111,226.34 and 47,905.34

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Solution

The fourth proportional to 80,629.60, 111,226.34 and 47,905.34 is: 66,084.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,629.60 : 111,226.34 = 47,905.34 : x
  2. Step 2: Convert to fraction form
    80,629.60/111,226.34 = 47,905.34/x
  3. Step 3: Cross multiply
    80,629.60x = 111,226.34 × 47,905.34
  4. Step 4: Simplify right side
    80,629.60x = 5,328,335,634.66
  5. Step 5: Solve for x
    x = 5,328,335,634.66/80,629.60
  6. Step 6: Final answer
    x = 66,084.11

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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.