Home / 79,115.47-109,179.97-43,305.77

Finding the Fourth Proportional to 79,115.47, 109,179.97 and 43,305.77

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Solution

The fourth proportional to 79,115.47, 109,179.97 and 43,305.77 is: 59,762.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,115.47 : 109,179.97 = 43,305.77 : x
  2. Step 2: Convert to fraction form
    79,115.47/109,179.97 = 43,305.77/x
  3. Step 3: Cross multiply
    79,115.47x = 109,179.97 × 43,305.77
  4. Step 4: Simplify right side
    79,115.47x = 4,728,122,834.11
  5. Step 5: Solve for x
    x = 4,728,122,834.11/79,115.47
  6. Step 6: Final answer
    x = 59,762.31

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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.