Home / 76,546.22-114,720.30-40,969.80

Finding the Fourth Proportional to 76,546.22, 114,720.30 and 40,969.80

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Solution

The fourth proportional to 76,546.22, 114,720.30 and 40,969.80 is: 61,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,546.22 : 114,720.30 = 40,969.80 : x
  2. Step 2: Convert to fraction form
    76,546.22/114,720.30 = 40,969.80/x
  3. Step 3: Cross multiply
    76,546.22x = 114,720.30 × 40,969.80
  4. Step 4: Simplify right side
    76,546.22x = 4,700,067,746.94
  5. Step 5: Solve for x
    x = 4,700,067,746.94/76,546.22
  6. Step 6: Final answer
    x = 61,401.70

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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.