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Finding the Fourth Proportional to 81,303.26, 121,951.23 and 33,898.82

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Solution

The fourth proportional to 81,303.26, 121,951.23 and 33,898.82 is: 50,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,303.26 : 121,951.23 = 33,898.82 : x
  2. Step 2: Convert to fraction form
    81,303.26/121,951.23 = 33,898.82/x
  3. Step 3: Cross multiply
    81,303.26x = 121,951.23 × 33,898.82
  4. Step 4: Simplify right side
    81,303.26x = 4,134,002,794.55
  5. Step 5: Solve for x
    x = 4,134,002,794.55/81,303.26
  6. Step 6: Final answer
    x = 50,846.70

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1.5x scale

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.