Home / 53,986.85-81,007.62-36,419.78

Finding the Fourth Proportional to 53,986.85, 81,007.62 and 36,419.78

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Solution

The fourth proportional to 53,986.85, 81,007.62 and 36,419.78 is: 54,648.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,986.85 : 81,007.62 = 36,419.78 : x
  2. Step 2: Convert to fraction form
    53,986.85/81,007.62 = 36,419.78/x
  3. Step 3: Cross multiply
    53,986.85x = 81,007.62 × 36,419.78
  4. Step 4: Simplify right side
    53,986.85x = 2,950,279,293.69
  5. Step 5: Solve for x
    x = 2,950,279,293.69/53,986.85
  6. Step 6: Final answer
    x = 54,648.11

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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.