Home / 68,676.36-94,778.20-40,002.96

Finding the Fourth Proportional to 68,676.36, 94,778.20 and 40,002.96

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Solution

The fourth proportional to 68,676.36, 94,778.20 and 40,002.96 is: 55,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.36 : 94,778.20 = 40,002.96 : x
  2. Step 2: Convert to fraction form
    68,676.36/94,778.20 = 40,002.96/x
  3. Step 3: Cross multiply
    68,676.36x = 94,778.20 × 40,002.96
  4. Step 4: Simplify right side
    68,676.36x = 3,791,408,948.89
  5. Step 5: Solve for x
    x = 3,791,408,948.89/68,676.36
  6. Step 6: Final answer
    x = 55,206.90

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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.