Home / 74,400.45-102,673.85-40,408.97

Finding the Fourth Proportional to 74,400.45, 102,673.85 and 40,408.97

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Solution

The fourth proportional to 74,400.45, 102,673.85 and 40,408.97 is: 55,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,400.45 : 102,673.85 = 40,408.97 : x
  2. Step 2: Convert to fraction form
    74,400.45/102,673.85 = 40,408.97/x
  3. Step 3: Cross multiply
    74,400.45x = 102,673.85 × 40,408.97
  4. Step 4: Simplify right side
    74,400.45x = 4,148,944,380.37
  5. Step 5: Solve for x
    x = 4,148,944,380.37/74,400.45
  6. Step 6: Final answer
    x = 55,765.04

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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.