Home / 207,560.42-311,348.82-57,813.79

Finding the Fourth Proportional to 207,560.42, 311,348.82 and 57,813.79

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Solution

The fourth proportional to 207,560.42, 311,348.82 and 57,813.79 is: 86,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,560.42 : 311,348.82 = 57,813.79 : x
  2. Step 2: Convert to fraction form
    207,560.42/311,348.82 = 57,813.79/x
  3. Step 3: Cross multiply
    207,560.42x = 311,348.82 × 57,813.79
  4. Step 4: Simplify right side
    207,560.42x = 18,000,254,517.86
  5. Step 5: Solve for x
    x = 18,000,254,517.86/207,560.42
  6. Step 6: Final answer
    x = 86,722.96

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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.