Home / 51,243.36-76,812.48-19,644.90

Finding the Fourth Proportional to 51,243.36, 76,812.48 and 19,644.90

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Solution

The fourth proportional to 51,243.36, 76,812.48 and 19,644.90 is: 29,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,243.36 : 76,812.48 = 19,644.90 : x
  2. Step 2: Convert to fraction form
    51,243.36/76,812.48 = 19,644.90/x
  3. Step 3: Cross multiply
    51,243.36x = 76,812.48 × 19,644.90
  4. Step 4: Simplify right side
    51,243.36x = 1,508,973,488.35
  5. Step 5: Solve for x
    x = 1,508,973,488.35/51,243.36
  6. Step 6: Final answer
    x = 29,447.20

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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.