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Finding the Fourth Proportional to 79,151.84, 109,183.92 and 49,292

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Solution

The fourth proportional to 79,151.84, 109,183.92 and 49,292 is: 67,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,151.84 : 109,183.92 = 49,292 : x
  2. Step 2: Convert to fraction form
    79,151.84/109,183.92 = 49,292/x
  3. Step 3: Cross multiply
    79,151.84x = 109,183.92 × 49,292
  4. Step 4: Simplify right side
    79,151.84x = 5,381,893,784.64
  5. Step 5: Solve for x
    x = 5,381,893,784.64/79,151.84
  6. Step 6: Final answer
    x = 67,994.55

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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.