Home / 68,529.28-102,725.82-31,117

Finding the Fourth Proportional to 68,529.28, 102,725.82 and 31,117

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Solution

The fourth proportional to 68,529.28, 102,725.82 and 31,117 is: 46,644.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,529.28 : 102,725.82 = 31,117 : x
  2. Step 2: Convert to fraction form
    68,529.28/102,725.82 = 31,117/x
  3. Step 3: Cross multiply
    68,529.28x = 102,725.82 × 31,117
  4. Step 4: Simplify right side
    68,529.28x = 3,196,519,340.94
  5. Step 5: Solve for x
    x = 3,196,519,340.94/68,529.28
  6. Step 6: Final answer
    x = 46,644.58

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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.