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Finding the Fourth Proportional to 79,194.79, 109,288.81 and 47,363.69

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Solution

The fourth proportional to 79,194.79, 109,288.81 and 47,363.69 is: 65,361.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,194.79 : 109,288.81 = 47,363.69 : x
  2. Step 2: Convert to fraction form
    79,194.79/109,288.81 = 47,363.69/x
  3. Step 3: Cross multiply
    79,194.79x = 109,288.81 × 47,363.69
  4. Step 4: Simplify right side
    79,194.79x = 5,176,320,925.68
  5. Step 5: Solve for x
    x = 5,176,320,925.68/79,194.79
  6. Step 6: Final answer
    x = 65,361.89

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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.