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Finding the Fourth Proportional to 67,207.80, 92,707.74 and 40,334.88

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Solution

The fourth proportional to 67,207.80, 92,707.74 and 40,334.88 is: 55,638.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,207.80 : 92,707.74 = 40,334.88 : x
  2. Step 2: Convert to fraction form
    67,207.80/92,707.74 = 40,334.88/x
  3. Step 3: Cross multiply
    67,207.80x = 92,707.74 × 40,334.88
  4. Step 4: Simplify right side
    67,207.80x = 3,739,355,567.97
  5. Step 5: Solve for x
    x = 3,739,355,567.97/67,207.80
  6. Step 6: Final answer
    x = 55,638.71

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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.