Home / 79,699.28-109,976.54-43,887.16

Finding the Fourth Proportional to 79,699.28, 109,976.54 and 43,887.16

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Solution

The fourth proportional to 79,699.28, 109,976.54 and 43,887.16 is: 60,559.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,699.28 : 109,976.54 = 43,887.16 : x
  2. Step 2: Convert to fraction form
    79,699.28/109,976.54 = 43,887.16/x
  3. Step 3: Cross multiply
    79,699.28x = 109,976.54 × 43,887.16
  4. Step 4: Simplify right side
    79,699.28x = 4,826,558,007.23
  5. Step 5: Solve for x
    x = 4,826,558,007.23/79,699.28
  6. Step 6: Final answer
    x = 60,559.62

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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.