Home / 79,139.26-109,211.79-43,328.62

Finding the Fourth Proportional to 79,139.26, 109,211.79 and 43,328.62

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Solution

The fourth proportional to 79,139.26, 109,211.79 and 43,328.62 is: 59,793.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,139.26 : 109,211.79 = 43,328.62 : x
  2. Step 2: Convert to fraction form
    79,139.26/109,211.79 = 43,328.62/x
  3. Step 3: Cross multiply
    79,139.26x = 109,211.79 × 43,328.62
  4. Step 4: Simplify right side
    79,139.26x = 4,731,996,148.43
  5. Step 5: Solve for x
    x = 4,731,996,148.43/79,139.26
  6. Step 6: Final answer
    x = 59,793.28

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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.