Home / 79,700.63-109,986.86-43,890.56

Finding the Fourth Proportional to 79,700.63, 109,986.86 and 43,890.56

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Solution

The fourth proportional to 79,700.63, 109,986.86 and 43,890.56 is: 60,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,700.63 : 109,986.86 = 43,890.56 : x
  2. Step 2: Convert to fraction form
    79,700.63/109,986.86 = 43,890.56/x
  3. Step 3: Cross multiply
    79,700.63x = 109,986.86 × 43,890.56
  4. Step 4: Simplify right side
    79,700.63x = 4,827,384,850.28
  5. Step 5: Solve for x
    x = 4,827,384,850.28/79,700.63
  6. Step 6: Final answer
    x = 60,568.97

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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.