Home / 49,090.12-73,635.48-20,986.49

Finding the Fourth Proportional to 49,090.12, 73,635.48 and 20,986.49

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Solution

The fourth proportional to 49,090.12, 73,635.48 and 20,986.49 is: 31,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,090.12 : 73,635.48 = 20,986.49 : x
  2. Step 2: Convert to fraction form
    49,090.12/73,635.48 = 20,986.49/x
  3. Step 3: Cross multiply
    49,090.12x = 73,635.48 × 20,986.49
  4. Step 4: Simplify right side
    49,090.12x = 1,545,350,448.75
  5. Step 5: Solve for x
    x = 1,545,350,448.75/49,090.12
  6. Step 6: Final answer
    x = 31,479.87

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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.