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Finding the Fourth Proportional to 32,763, 49,144.84 and 8,139

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Solution

The fourth proportional to 32,763, 49,144.84 and 8,139 is: 12,208.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,763 : 49,144.84 = 8,139 : x
  2. Step 2: Convert to fraction form
    32,763/49,144.84 = 8,139/x
  3. Step 3: Cross multiply
    32,763x = 49,144.84 × 8,139
  4. Step 4: Simplify right side
    32,763x = 399,989,852.76
  5. Step 5: Solve for x
    x = 399,989,852.76/32,763
  6. Step 6: Final answer
    x = 12,208.58

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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.