Home / 207,623.70-311,435.78-57,864.42

Finding the Fourth Proportional to 207,623.70, 311,435.78 and 57,864.42

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Solution

The fourth proportional to 207,623.70, 311,435.78 and 57,864.42 is: 86,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,623.70 : 311,435.78 = 57,864.42 : x
  2. Step 2: Convert to fraction form
    207,623.70/311,435.78 = 57,864.42/x
  3. Step 3: Cross multiply
    207,623.70x = 311,435.78 × 57,864.42
  4. Step 4: Simplify right side
    207,623.70x = 18,021,050,487.63
  5. Step 5: Solve for x
    x = 18,021,050,487.63/207,623.70
  6. Step 6: Final answer
    x = 86,796.69

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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.