Home / 79,431.49-109,615.17-43,623.82

Finding the Fourth Proportional to 79,431.49, 109,615.17 and 43,623.82

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Solution

The fourth proportional to 79,431.49, 109,615.17 and 43,623.82 is: 60,200.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,431.49 : 109,615.17 = 43,623.82 : x
  2. Step 2: Convert to fraction form
    79,431.49/109,615.17 = 43,623.82/x
  3. Step 3: Cross multiply
    79,431.49x = 109,615.17 × 43,623.82
  4. Step 4: Simplify right side
    79,431.49x = 4,781,832,445.35
  5. Step 5: Solve for x
    x = 4,781,832,445.35/79,431.49
  6. Step 6: Final answer
    x = 60,200.71

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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.