Home / 79,112.87-109,176.79-43,302.11

Finding the Fourth Proportional to 79,112.87, 109,176.79 and 43,302.11

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Solution

The fourth proportional to 79,112.87, 109,176.79 and 43,302.11 is: 59,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,112.87 : 109,176.79 = 43,302.11 : x
  2. Step 2: Convert to fraction form
    79,112.87/109,176.79 = 43,302.11/x
  3. Step 3: Cross multiply
    79,112.87x = 109,176.79 × 43,302.11
  4. Step 4: Simplify right side
    79,112.87x = 4,727,585,370.03
  5. Step 5: Solve for x
    x = 4,727,585,370.03/79,112.87
  6. Step 6: Final answer
    x = 59,757.48

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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.