Home / 74,408.68-102,682.23-40,416.76

Finding the Fourth Proportional to 74,408.68, 102,682.23 and 40,416.76

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Solution

The fourth proportional to 74,408.68, 102,682.23 and 40,416.76 is: 55,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,408.68 : 102,682.23 = 40,416.76 : x
  2. Step 2: Convert to fraction form
    74,408.68/102,682.23 = 40,416.76/x
  3. Step 3: Cross multiply
    74,408.68x = 102,682.23 × 40,416.76
  4. Step 4: Simplify right side
    74,408.68x = 4,150,083,046.17
  5. Step 5: Solve for x
    x = 4,150,083,046.17/74,408.68
  6. Step 6: Final answer
    x = 55,774.18

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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.