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Finding the Fourth Proportional to 45,714.92, 68,601.60 and 19,419.65

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Solution

The fourth proportional to 45,714.92, 68,601.60 and 19,419.65 is: 29,141.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,714.92 : 68,601.60 = 19,419.65 : x
  2. Step 2: Convert to fraction form
    45,714.92/68,601.60 = 19,419.65/x
  3. Step 3: Cross multiply
    45,714.92x = 68,601.60 × 19,419.65
  4. Step 4: Simplify right side
    45,714.92x = 1,332,218,975.69
  5. Step 5: Solve for x
    x = 1,332,218,975.69/45,714.92
  6. Step 6: Final answer
    x = 29,141.89

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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.