Home / 207,546.12-311,319.40-57,786.72

Finding the Fourth Proportional to 207,546.12, 311,319.40 and 57,786.72

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Solution

The fourth proportional to 207,546.12, 311,319.40 and 57,786.72 is: 86,680.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,546.12 : 311,319.40 = 57,786.72 : x
  2. Step 2: Convert to fraction form
    207,546.12/311,319.40 = 57,786.72/x
  3. Step 3: Cross multiply
    207,546.12x = 311,319.40 × 57,786.72
  4. Step 4: Simplify right side
    207,546.12x = 17,990,126,998.37
  5. Step 5: Solve for x
    x = 17,990,126,998.37/207,546.12
  6. Step 6: Final answer
    x = 86,680.14

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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.