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Finding the Fourth Proportional to 52,722, 79,083 and 15,786

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Solution

The fourth proportional to 52,722, 79,083 and 15,786 is: 23,679

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,722 : 79,083 = 15,786 : x
  2. Step 2: Convert to fraction form
    52,722/79,083 = 15,786/x
  3. Step 3: Cross multiply
    52,722x = 79,083 × 15,786
  4. Step 4: Simplify right side
    52,722x = 1,248,404,238
  5. Step 5: Solve for x
    x = 1,248,404,238/52,722
  6. Step 6: Final answer
    x = 23,679

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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.