Home / 76,965.12-115,353.34-43,713.14

Finding the Fourth Proportional to 76,965.12, 115,353.34 and 43,713.14

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Solution

The fourth proportional to 76,965.12, 115,353.34 and 43,713.14 is: 65,516.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,965.12 : 115,353.34 = 43,713.14 : x
  2. Step 2: Convert to fraction form
    76,965.12/115,353.34 = 43,713.14/x
  3. Step 3: Cross multiply
    76,965.12x = 115,353.34 × 43,713.14
  4. Step 4: Simplify right side
    76,965.12x = 5,042,456,014.84
  5. Step 5: Solve for x
    x = 5,042,456,014.84/76,965.12
  6. Step 6: Final answer
    x = 65,516.12

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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.