Home / 79,110.44-109,172.54-43,302.72

Finding the Fourth Proportional to 79,110.44, 109,172.54 and 43,302.72

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Solution

The fourth proportional to 79,110.44, 109,172.54 and 43,302.72 is: 59,757.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,110.44 : 109,172.54 = 43,302.72 : x
  2. Step 2: Convert to fraction form
    79,110.44/109,172.54 = 43,302.72/x
  3. Step 3: Cross multiply
    79,110.44x = 109,172.54 × 43,302.72
  4. Step 4: Simplify right side
    79,110.44x = 4,727,467,931.31
  5. Step 5: Solve for x
    x = 4,727,467,931.31/79,110.44
  6. Step 6: Final answer
    x = 59,757.83

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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.