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Finding the Fourth Proportional to 79,042.65, 109,081.67 and 45,056.27

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Solution

The fourth proportional to 79,042.65, 109,081.67 and 45,056.27 is: 62,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,042.65 : 109,081.67 = 45,056.27 : x
  2. Step 2: Convert to fraction form
    79,042.65/109,081.67 = 45,056.27/x
  3. Step 3: Cross multiply
    79,042.65x = 109,081.67 × 45,056.27
  4. Step 4: Simplify right side
    79,042.65x = 4,914,812,404.88
  5. Step 5: Solve for x
    x = 4,914,812,404.88/79,042.65
  6. Step 6: Final answer
    x = 62,179.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.