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Finding the Fourth Proportional to 79,504, 119,168.34 and 51,357.40

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Solution

The fourth proportional to 79,504, 119,168.34 and 51,357.40 is: 76,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,504 : 119,168.34 = 51,357.40 : x
  2. Step 2: Convert to fraction form
    79,504/119,168.34 = 51,357.40/x
  3. Step 3: Cross multiply
    79,504x = 119,168.34 × 51,357.40
  4. Step 4: Simplify right side
    79,504x = 6,120,176,104.72
  5. Step 5: Solve for x
    x = 6,120,176,104.72/79,504
  6. Step 6: Final answer
    x = 76,979.47

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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.