Home / 51,686.42-71,361.49-39,727.70

Finding the Fourth Proportional to 51,686.42, 71,361.49 and 39,727.70

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Solution

The fourth proportional to 51,686.42, 71,361.49 and 39,727.70 is: 54,850.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,686.42 : 71,361.49 = 39,727.70 : x
  2. Step 2: Convert to fraction form
    51,686.42/71,361.49 = 39,727.70/x
  3. Step 3: Cross multiply
    51,686.42x = 71,361.49 × 39,727.70
  4. Step 4: Simplify right side
    51,686.42x = 2,835,027,866.27
  5. Step 5: Solve for x
    x = 2,835,027,866.27/51,686.42
  6. Step 6: Final answer
    x = 54,850.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.