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Finding the Fourth Proportional to 79,000.56, 109,022.50 and 47,163.52

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Solution

The fourth proportional to 79,000.56, 109,022.50 and 47,163.52 is: 65,086.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,000.56 : 109,022.50 = 47,163.52 : x
  2. Step 2: Convert to fraction form
    79,000.56/109,022.50 = 47,163.52/x
  3. Step 3: Cross multiply
    79,000.56x = 109,022.50 × 47,163.52
  4. Step 4: Simplify right side
    79,000.56x = 5,141,884,859.20
  5. Step 5: Solve for x
    x = 5,141,884,859.20/79,000.56
  6. Step 6: Final answer
    x = 65,086.69

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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.