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Finding the Fourth Proportional to 67,004.76, 100,375.74 and 38,865.72

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Solution

The fourth proportional to 67,004.76, 100,375.74 and 38,865.72 is: 58,222.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,004.76 : 100,375.74 = 38,865.72 : x
  2. Step 2: Convert to fraction form
    67,004.76/100,375.74 = 38,865.72/x
  3. Step 3: Cross multiply
    67,004.76x = 100,375.74 × 38,865.72
  4. Step 4: Simplify right side
    67,004.76x = 3,901,175,405.63
  5. Step 5: Solve for x
    x = 3,901,175,405.63/67,004.76
  6. Step 6: Final answer
    x = 58,222.36

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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.