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Finding the Fourth Proportional to 84,730.44, 126,993 and 47,250.64

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Solution

The fourth proportional to 84,730.44, 126,993 and 47,250.64 is: 70,818.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,730.44 : 126,993 = 47,250.64 : x
  2. Step 2: Convert to fraction form
    84,730.44/126,993 = 47,250.64/x
  3. Step 3: Cross multiply
    84,730.44x = 126,993 × 47,250.64
  4. Step 4: Simplify right side
    84,730.44x = 6,000,500,525.52
  5. Step 5: Solve for x
    x = 6,000,500,525.52/84,730.44
  6. Step 6: Final answer
    x = 70,818.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.