Home / 79,664.13-109,935.90-43,854.75

Finding the Fourth Proportional to 79,664.13, 109,935.90 and 43,854.75

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Solution

The fourth proportional to 79,664.13, 109,935.90 and 43,854.75 is: 60,519.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,664.13 : 109,935.90 = 43,854.75 : x
  2. Step 2: Convert to fraction form
    79,664.13/109,935.90 = 43,854.75/x
  3. Step 3: Cross multiply
    79,664.13x = 109,935.90 × 43,854.75
  4. Step 4: Simplify right side
    79,664.13x = 4,821,211,410.53
  5. Step 5: Solve for x
    x = 4,821,211,410.53/79,664.13
  6. Step 6: Final answer
    x = 60,519.23

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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.