Home / 51,175.25-76,762.87-19,988.63

Finding the Fourth Proportional to 51,175.25, 76,762.87 and 19,988.63

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Solution

The fourth proportional to 51,175.25, 76,762.87 and 19,988.63 is: 29,982.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,175.25 : 76,762.87 = 19,988.63 : x
  2. Step 2: Convert to fraction form
    51,175.25/76,762.87 = 19,988.63/x
  3. Step 3: Cross multiply
    51,175.25x = 76,762.87 × 19,988.63
  4. Step 4: Simplify right side
    51,175.25x = 1,534,384,172.38
  5. Step 5: Solve for x
    x = 1,534,384,172.38/51,175.25
  6. Step 6: Final answer
    x = 29,982.94

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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.