Home / 79,214.45-109,318.49-43,406.75

Finding the Fourth Proportional to 79,214.45, 109,318.49 and 43,406.75

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Solution

The fourth proportional to 79,214.45, 109,318.49 and 43,406.75 is: 59,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,214.45 : 109,318.49 = 43,406.75 : x
  2. Step 2: Convert to fraction form
    79,214.45/109,318.49 = 43,406.75/x
  3. Step 3: Cross multiply
    79,214.45x = 109,318.49 × 43,406.75
  4. Step 4: Simplify right side
    79,214.45x = 4,745,160,365.81
  5. Step 5: Solve for x
    x = 4,745,160,365.81/79,214.45
  6. Step 6: Final answer
    x = 59,902.71

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1.5x scale

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.