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Finding the Fourth Proportional to 79,078.88, 118,624.40 and 22,919.75

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Solution

The fourth proportional to 79,078.88, 118,624.40 and 22,919.75 is: 34,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,078.88 : 118,624.40 = 22,919.75 : x
  2. Step 2: Convert to fraction form
    79,078.88/118,624.40 = 22,919.75/x
  3. Step 3: Cross multiply
    79,078.88x = 118,624.40 × 22,919.75
  4. Step 4: Simplify right side
    79,078.88x = 2,718,840,884.18
  5. Step 5: Solve for x
    x = 2,718,840,884.18/79,078.88
  6. Step 6: Final answer
    x = 34,381.38

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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.