Home / 67,191.77-92,734.85-40,349.08

Finding the Fourth Proportional to 67,191.77, 92,734.85 and 40,349.08

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Solution

The fourth proportional to 67,191.77, 92,734.85 and 40,349.08 is: 55,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,191.77 : 92,734.85 = 40,349.08 : x
  2. Step 2: Convert to fraction form
    67,191.77/92,734.85 = 40,349.08/x
  3. Step 3: Cross multiply
    67,191.77x = 92,734.85 × 40,349.08
  4. Step 4: Simplify right side
    67,191.77x = 3,741,765,447.86
  5. Step 5: Solve for x
    x = 3,741,765,447.86/67,191.77
  6. Step 6: Final answer
    x = 55,687.85

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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.