Home / 68,325.22-102,439.43-30,353.63

Finding the Fourth Proportional to 68,325.22, 102,439.43 and 30,353.63

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Solution

The fourth proportional to 68,325.22, 102,439.43 and 30,353.63 is: 45,508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,325.22 : 102,439.43 = 30,353.63 : x
  2. Step 2: Convert to fraction form
    68,325.22/102,439.43 = 30,353.63/x
  3. Step 3: Cross multiply
    68,325.22x = 102,439.43 × 30,353.63
  4. Step 4: Simplify right side
    68,325.22x = 3,109,408,403.86
  5. Step 5: Solve for x
    x = 3,109,408,403.86/68,325.22
  6. Step 6: Final answer
    x = 45,508.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.