Home / 79,388.30-109,558.68-43,581.04

Finding the Fourth Proportional to 79,388.30, 109,558.68 and 43,581.04

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Solution

The fourth proportional to 79,388.30, 109,558.68 and 43,581.04 is: 60,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,388.30 : 109,558.68 = 43,581.04 : x
  2. Step 2: Convert to fraction form
    79,388.30/109,558.68 = 43,581.04/x
  3. Step 3: Cross multiply
    79,388.30x = 109,558.68 × 43,581.04
  4. Step 4: Simplify right side
    79,388.30x = 4,774,680,778.10
  5. Step 5: Solve for x
    x = 4,774,680,778.10/79,388.30
  6. Step 6: Final answer
    x = 60,143.38

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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.