Home / 79,623.59-109,884.16-49,418.64

Finding the Fourth Proportional to 79,623.59, 109,884.16 and 49,418.64

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Solution

The fourth proportional to 79,623.59, 109,884.16 and 49,418.64 is: 68,199.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,623.59 : 109,884.16 = 49,418.64 : x
  2. Step 2: Convert to fraction form
    79,623.59/109,884.16 = 49,418.64/x
  3. Step 3: Cross multiply
    79,623.59x = 109,884.16 × 49,418.64
  4. Step 4: Simplify right side
    79,623.59x = 5,430,325,744.74
  5. Step 5: Solve for x
    x = 5,430,325,744.74/79,623.59
  6. Step 6: Final answer
    x = 68,199.96

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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.