Home / 40,139.37-60,187.14-31,872.49

Finding the Fourth Proportional to 40,139.37, 60,187.14 and 31,872.49

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Solution

The fourth proportional to 40,139.37, 60,187.14 and 31,872.49 is: 47,791.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.37 : 60,187.14 = 31,872.49 : x
  2. Step 2: Convert to fraction form
    40,139.37/60,187.14 = 31,872.49/x
  3. Step 3: Cross multiply
    40,139.37x = 60,187.14 × 31,872.49
  4. Step 4: Simplify right side
    40,139.37x = 1,918,313,858.42
  5. Step 5: Solve for x
    x = 1,918,313,858.42/40,139.37
  6. Step 6: Final answer
    x = 47,791.33

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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.