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Finding the Fourth Proportional to 67,173.52, 92,697.96 and 38,878.64

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Solution

The fourth proportional to 67,173.52, 92,697.96 and 38,878.64 is: 53,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,173.52 : 92,697.96 = 38,878.64 : x
  2. Step 2: Convert to fraction form
    67,173.52/92,697.96 = 38,878.64/x
  3. Step 3: Cross multiply
    67,173.52x = 92,697.96 × 38,878.64
  4. Step 4: Simplify right side
    67,173.52x = 3,603,970,615.57
  5. Step 5: Solve for x
    x = 3,603,970,615.57/67,173.52
  6. Step 6: Final answer
    x = 53,651.66

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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.