Home / 79,217.28-109,317.96-43,405.56

Finding the Fourth Proportional to 79,217.28, 109,317.96 and 43,405.56

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Solution

The fourth proportional to 79,217.28, 109,317.96 and 43,405.56 is: 59,898.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,217.28 : 109,317.96 = 43,405.56 : x
  2. Step 2: Convert to fraction form
    79,217.28/109,317.96 = 43,405.56/x
  3. Step 3: Cross multiply
    79,217.28x = 109,317.96 × 43,405.56
  4. Step 4: Simplify right side
    79,217.28x = 4,745,007,271.86
  5. Step 5: Solve for x
    x = 4,745,007,271.86/79,217.28
  6. Step 6: Final answer
    x = 59,898.64

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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.