Home / 51,713.78-77,561.42-13,763.25

Finding the Fourth Proportional to 51,713.78, 77,561.42 and 13,763.25

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Solution

The fourth proportional to 51,713.78, 77,561.42 and 13,763.25 is: 20,642.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,713.78 : 77,561.42 = 13,763.25 : x
  2. Step 2: Convert to fraction form
    51,713.78/77,561.42 = 13,763.25/x
  3. Step 3: Cross multiply
    51,713.78x = 77,561.42 × 13,763.25
  4. Step 4: Simplify right side
    51,713.78x = 1,067,497,145.00
  5. Step 5: Solve for x
    x = 1,067,497,145.00/51,713.78
  6. Step 6: Final answer
    x = 20,642.41

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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.