Home / 79,189.28-109,281.39-43,379.44

Finding the Fourth Proportional to 79,189.28, 109,281.39 and 43,379.44

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Solution

The fourth proportional to 79,189.28, 109,281.39 and 43,379.44 is: 59,863.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,189.28 : 109,281.39 = 43,379.44 : x
  2. Step 2: Convert to fraction form
    79,189.28/109,281.39 = 43,379.44/x
  3. Step 3: Cross multiply
    79,189.28x = 109,281.39 × 43,379.44
  4. Step 4: Simplify right side
    79,189.28x = 4,740,565,064.75
  5. Step 5: Solve for x
    x = 4,740,565,064.75/79,189.28
  6. Step 6: Final answer
    x = 59,863.72

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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.