Home / 77,246.22-115,891.20-45,684.30

Finding the Fourth Proportional to 77,246.22, 115,891.20 and 45,684.30

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Solution

The fourth proportional to 77,246.22, 115,891.20 and 45,684.30 is: 68,539.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,246.22 : 115,891.20 = 45,684.30 : x
  2. Step 2: Convert to fraction form
    77,246.22/115,891.20 = 45,684.30/x
  3. Step 3: Cross multiply
    77,246.22x = 115,891.20 × 45,684.30
  4. Step 4: Simplify right side
    77,246.22x = 5,294,408,348.16
  5. Step 5: Solve for x
    x = 5,294,408,348.16/77,246.22
  6. Step 6: Final answer
    x = 68,539.38

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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.