Home / 79,677.10-109,955.37-43,869.55

Finding the Fourth Proportional to 79,677.10, 109,955.37 and 43,869.55

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Solution

The fourth proportional to 79,677.10, 109,955.37 and 43,869.55 is: 60,540.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,677.10 : 109,955.37 = 43,869.55 : x
  2. Step 2: Convert to fraction form
    79,677.10/109,955.37 = 43,869.55/x
  3. Step 3: Cross multiply
    79,677.10x = 109,955.37 × 43,869.55
  4. Step 4: Simplify right side
    79,677.10x = 4,823,692,601.98
  5. Step 5: Solve for x
    x = 4,823,692,601.98/79,677.10
  6. Step 6: Final answer
    x = 60,540.51

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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.