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Finding the Fourth Proportional to 67,751.92, 101,627.88 and 28,287.55

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Solution

The fourth proportional to 67,751.92, 101,627.88 and 28,287.55 is: 42,431.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,751.92 : 101,627.88 = 28,287.55 : x
  2. Step 2: Convert to fraction form
    67,751.92/101,627.88 = 28,287.55/x
  3. Step 3: Cross multiply
    67,751.92x = 101,627.88 × 28,287.55
  4. Step 4: Simplify right side
    67,751.92x = 2,874,803,736.89
  5. Step 5: Solve for x
    x = 2,874,803,736.89/67,751.92
  6. Step 6: Final answer
    x = 42,431.33

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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.