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Finding the Fourth Proportional to 253,059.92, 379,590.02 and 66,071.42

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Solution

The fourth proportional to 253,059.92, 379,590.02 and 66,071.42 is: 99,107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,059.92 : 379,590.02 = 66,071.42 : x
  2. Step 2: Convert to fraction form
    253,059.92/379,590.02 = 66,071.42/x
  3. Step 3: Cross multiply
    253,059.92x = 379,590.02 × 66,071.42
  4. Step 4: Simplify right side
    253,059.92x = 25,080,049,410.92
  5. Step 5: Solve for x
    x = 25,080,049,410.92/253,059.92
  6. Step 6: Final answer
    x = 99,107.16

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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.