Home / 51,177.33-76,765.99-19,990.71

Finding the Fourth Proportional to 51,177.33, 76,765.99 and 19,990.71

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Solution

The fourth proportional to 51,177.33, 76,765.99 and 19,990.71 is: 29,986.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,177.33 : 76,765.99 = 19,990.71 : x
  2. Step 2: Convert to fraction form
    51,177.33/76,765.99 = 19,990.71/x
  3. Step 3: Cross multiply
    51,177.33x = 76,765.99 × 19,990.71
  4. Step 4: Simplify right side
    51,177.33x = 1,534,606,160.17
  5. Step 5: Solve for x
    x = 1,534,606,160.17/51,177.33
  6. Step 6: Final answer
    x = 29,986.06

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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.