Home / 50,486.25-75,740.31-19,321.50

Finding the Fourth Proportional to 50,486.25, 75,740.31 and 19,321.50

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Solution

The fourth proportional to 50,486.25, 75,740.31 and 19,321.50 is: 28,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,486.25 : 75,740.31 = 19,321.50 : x
  2. Step 2: Convert to fraction form
    50,486.25/75,740.31 = 19,321.50/x
  3. Step 3: Cross multiply
    50,486.25x = 75,740.31 × 19,321.50
  4. Step 4: Simplify right side
    50,486.25x = 1,463,416,399.67
  5. Step 5: Solve for x
    x = 1,463,416,399.67/50,486.25
  6. Step 6: Final answer
    x = 28,986.43

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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.