Home / 52,062.36-78,092.82-12,619.80

Finding the Fourth Proportional to 52,062.36, 78,092.82 and 12,619.80

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Solution

The fourth proportional to 52,062.36, 78,092.82 and 12,619.80 is: 18,929.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,062.36 : 78,092.82 = 12,619.80 : x
  2. Step 2: Convert to fraction form
    52,062.36/78,092.82 = 12,619.80/x
  3. Step 3: Cross multiply
    52,062.36x = 78,092.82 × 12,619.80
  4. Step 4: Simplify right side
    52,062.36x = 985,515,769.84
  5. Step 5: Solve for x
    x = 985,515,769.84/52,062.36
  6. Step 6: Final answer
    x = 18,929.53

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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.