Home / 63,021.17-86,965.92-39,147.36

Finding the Fourth Proportional to 63,021.17, 86,965.92 and 39,147.36

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Solution

The fourth proportional to 63,021.17, 86,965.92 and 39,147.36 is: 54,021.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,021.17 : 86,965.92 = 39,147.36 : x
  2. Step 2: Convert to fraction form
    63,021.17/86,965.92 = 39,147.36/x
  3. Step 3: Cross multiply
    63,021.17x = 86,965.92 × 39,147.36
  4. Step 4: Simplify right side
    63,021.17x = 3,404,486,177.97
  5. Step 5: Solve for x
    x = 3,404,486,177.97/63,021.17
  6. Step 6: Final answer
    x = 54,021.31

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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.