Home / 79,209.57-109,309.19-43,400.94

Finding the Fourth Proportional to 79,209.57, 109,309.19 and 43,400.94

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Solution

The fourth proportional to 79,209.57, 109,309.19 and 43,400.94 is: 59,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,209.57 : 109,309.19 = 43,400.94 : x
  2. Step 2: Convert to fraction form
    79,209.57/109,309.19 = 43,400.94/x
  3. Step 3: Cross multiply
    79,209.57x = 109,309.19 × 43,400.94
  4. Step 4: Simplify right side
    79,209.57x = 4,744,121,379.63
  5. Step 5: Solve for x
    x = 4,744,121,379.63/79,209.57
  6. Step 6: Final answer
    x = 59,893.29

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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.