Home / 79,145.56-109,216.38-43,328.44

Finding the Fourth Proportional to 79,145.56, 109,216.38 and 43,328.44

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Solution

The fourth proportional to 79,145.56, 109,216.38 and 43,328.44 is: 59,790.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,145.56 : 109,216.38 = 43,328.44 : x
  2. Step 2: Convert to fraction form
    79,145.56/109,216.38 = 43,328.44/x
  3. Step 3: Cross multiply
    79,145.56x = 109,216.38 × 43,328.44
  4. Step 4: Simplify right side
    79,145.56x = 4,732,175,367.85
  5. Step 5: Solve for x
    x = 4,732,175,367.85/79,145.56
  6. Step 6: Final answer
    x = 59,790.79

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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.