Home / 52,486.13-78,721.08-19,198.41

Finding the Fourth Proportional to 52,486.13, 78,721.08 and 19,198.41

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Solution

The fourth proportional to 52,486.13, 78,721.08 and 19,198.41 is: 28,794.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,486.13 : 78,721.08 = 19,198.41 : x
  2. Step 2: Convert to fraction form
    52,486.13/78,721.08 = 19,198.41/x
  3. Step 3: Cross multiply
    52,486.13x = 78,721.08 × 19,198.41
  4. Step 4: Simplify right side
    52,486.13x = 1,511,319,569.48
  5. Step 5: Solve for x
    x = 1,511,319,569.48/52,486.13
  6. Step 6: Final answer
    x = 28,794.65

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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.