Home / 79,178.12-109,266.12-43,367.84

Finding the Fourth Proportional to 79,178.12, 109,266.12 and 43,367.84

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Solution

The fourth proportional to 79,178.12, 109,266.12 and 43,367.84 is: 59,847.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,178.12 : 109,266.12 = 43,367.84 : x
  2. Step 2: Convert to fraction form
    79,178.12/109,266.12 = 43,367.84/x
  3. Step 3: Cross multiply
    79,178.12x = 109,266.12 × 43,367.84
  4. Step 4: Simplify right side
    79,178.12x = 4,738,635,609.58
  5. Step 5: Solve for x
    x = 4,738,635,609.58/79,178.12
  6. Step 6: Final answer
    x = 59,847.79

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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.