Home / 76,825.80-115,230.06-30,066.12

Finding the Fourth Proportional to 76,825.80, 115,230.06 and 30,066.12

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Solution

The fourth proportional to 76,825.80, 115,230.06 and 30,066.12 is: 45,095.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,825.80 : 115,230.06 = 30,066.12 : x
  2. Step 2: Convert to fraction form
    76,825.80/115,230.06 = 30,066.12/x
  3. Step 3: Cross multiply
    76,825.80x = 115,230.06 × 30,066.12
  4. Step 4: Simplify right side
    76,825.80x = 3,464,520,811.57
  5. Step 5: Solve for x
    x = 3,464,520,811.57/76,825.80
  6. Step 6: Final answer
    x = 45,095.80

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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.