Home / 79,255.64-109,372.20-43,447.16

Finding the Fourth Proportional to 79,255.64, 109,372.20 and 43,447.16

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Solution

The fourth proportional to 79,255.64, 109,372.20 and 43,447.16 is: 59,956.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,255.64 : 109,372.20 = 43,447.16 : x
  2. Step 2: Convert to fraction form
    79,255.64/109,372.20 = 43,447.16/x
  3. Step 3: Cross multiply
    79,255.64x = 109,372.20 × 43,447.16
  4. Step 4: Simplify right side
    79,255.64x = 4,751,911,472.95
  5. Step 5: Solve for x
    x = 4,751,911,472.95/79,255.64
  6. Step 6: Final answer
    x = 59,956.76

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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.