Home / 79,219.46-109,321.14-43,408.70

Finding the Fourth Proportional to 79,219.46, 109,321.14 and 43,408.70

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Solution

The fourth proportional to 79,219.46, 109,321.14 and 43,408.70 is: 59,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,219.46 : 109,321.14 = 43,408.70 : x
  2. Step 2: Convert to fraction form
    79,219.46/109,321.14 = 43,408.70/x
  3. Step 3: Cross multiply
    79,219.46x = 109,321.14 × 43,408.70
  4. Step 4: Simplify right side
    79,219.46x = 4,745,488,569.92
  5. Step 5: Solve for x
    x = 4,745,488,569.92/79,219.46
  6. Step 6: Final answer
    x = 59,903.07

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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.