Home / 52,841.13-79,249.11-21,251.28

Finding the Fourth Proportional to 52,841.13, 79,249.11 and 21,251.28

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Solution

The fourth proportional to 52,841.13, 79,249.11 and 21,251.28 is: 31,871.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,841.13 : 79,249.11 = 21,251.28 : x
  2. Step 2: Convert to fraction form
    52,841.13/79,249.11 = 21,251.28/x
  3. Step 3: Cross multiply
    52,841.13x = 79,249.11 × 21,251.28
  4. Step 4: Simplify right side
    52,841.13x = 1,684,145,026.36
  5. Step 5: Solve for x
    x = 1,684,145,026.36/52,841.13
  6. Step 6: Final answer
    x = 31,871.86

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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.