Home / 80,736.75-111,416.72-45,408.75

Finding the Fourth Proportional to 80,736.75, 111,416.72 and 45,408.75

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Solution

The fourth proportional to 80,736.75, 111,416.72 and 45,408.75 is: 62,664.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,736.75 : 111,416.72 = 45,408.75 : x
  2. Step 2: Convert to fraction form
    80,736.75/111,416.72 = 45,408.75/x
  3. Step 3: Cross multiply
    80,736.75x = 111,416.72 × 45,408.75
  4. Step 4: Simplify right side
    80,736.75x = 5,059,293,757.26
  5. Step 5: Solve for x
    x = 5,059,293,757.26/80,736.75
  6. Step 6: Final answer
    x = 62,664.08

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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.