Home / 207,731.42-311,649.58-57,971.60

Finding the Fourth Proportional to 207,731.42, 311,649.58 and 57,971.60

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Solution

The fourth proportional to 207,731.42, 311,649.58 and 57,971.60 is: 86,972.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,731.42 : 311,649.58 = 57,971.60 : x
  2. Step 2: Convert to fraction form
    207,731.42/311,649.58 = 57,971.60/x
  3. Step 3: Cross multiply
    207,731.42x = 311,649.58 × 57,971.60
  4. Step 4: Simplify right side
    207,731.42x = 18,066,824,791.93
  5. Step 5: Solve for x
    x = 18,066,824,791.93/207,731.42
  6. Step 6: Final answer
    x = 86,972.04

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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.