Home / 76,690.20-115,054.38-60,954.60

Finding the Fourth Proportional to 76,690.20, 115,054.38 and 60,954.60

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Solution

The fourth proportional to 76,690.20, 115,054.38 and 60,954.60 is: 91,447.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,690.20 : 115,054.38 = 60,954.60 : x
  2. Step 2: Convert to fraction form
    76,690.20/115,054.38 = 60,954.60/x
  3. Step 3: Cross multiply
    76,690.20x = 115,054.38 × 60,954.60
  4. Step 4: Simplify right side
    76,690.20x = 7,013,093,711.15
  5. Step 5: Solve for x
    x = 7,013,093,711.15/76,690.20
  6. Step 6: Final answer
    x = 91,447.07

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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.