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Finding the Fourth Proportional to 79,170.64, 109,251.24 and 43,353.88

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Solution

The fourth proportional to 79,170.64, 109,251.24 and 43,353.88 is: 59,826.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,170.64 : 109,251.24 = 43,353.88 : x
  2. Step 2: Convert to fraction form
    79,170.64/109,251.24 = 43,353.88/x
  3. Step 3: Cross multiply
    79,170.64x = 109,251.24 × 43,353.88
  4. Step 4: Simplify right side
    79,170.64x = 4,736,465,148.81
  5. Step 5: Solve for x
    x = 4,736,465,148.81/79,170.64
  6. Step 6: Final answer
    x = 59,826.03

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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.