Home / 81,751.50-122,630.04-22,591.71

Finding the Fourth Proportional to 81,751.50, 122,630.04 and 22,591.71

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Solution

The fourth proportional to 81,751.50, 122,630.04 and 22,591.71 is: 33,888.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,751.50 : 122,630.04 = 22,591.71 : x
  2. Step 2: Convert to fraction form
    81,751.50/122,630.04 = 22,591.71/x
  3. Step 3: Cross multiply
    81,751.50x = 122,630.04 × 22,591.71
  4. Step 4: Simplify right side
    81,751.50x = 2,770,422,300.97
  5. Step 5: Solve for x
    x = 2,770,422,300.97/81,751.50
  6. Step 6: Final answer
    x = 33,888.34

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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.