Home / 66,961.61-92,400.29-40,103.43

Finding the Fourth Proportional to 66,961.61, 92,400.29 and 40,103.43

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Solution

The fourth proportional to 66,961.61, 92,400.29 and 40,103.43 is: 55,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,961.61 : 92,400.29 = 40,103.43 : x
  2. Step 2: Convert to fraction form
    66,961.61/92,400.29 = 40,103.43/x
  3. Step 3: Cross multiply
    66,961.61x = 92,400.29 × 40,103.43
  4. Step 4: Simplify right side
    66,961.61x = 3,705,568,650.82
  5. Step 5: Solve for x
    x = 3,705,568,650.82/66,961.61
  6. Step 6: Final answer
    x = 55,338.70

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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.