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Finding the Fourth Proportional to 79,627.19, 109,922.11 and 49,430.27

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Solution

The fourth proportional to 79,627.19, 109,922.11 and 49,430.27 is: 68,236.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,627.19 : 109,922.11 = 49,430.27 : x
  2. Step 2: Convert to fraction form
    79,627.19/109,922.11 = 49,430.27/x
  3. Step 3: Cross multiply
    79,627.19x = 109,922.11 × 49,430.27
  4. Step 4: Simplify right side
    79,627.19x = 5,433,479,727.50
  5. Step 5: Solve for x
    x = 5,433,479,727.50/79,627.19
  6. Step 6: Final answer
    x = 68,236.49

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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.