Home / 52,255.65-78,377.40-18,517.83

Finding the Fourth Proportional to 52,255.65, 78,377.40 and 18,517.83

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Solution

The fourth proportional to 52,255.65, 78,377.40 and 18,517.83 is: 27,774.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,255.65 : 78,377.40 = 18,517.83 : x
  2. Step 2: Convert to fraction form
    52,255.65/78,377.40 = 18,517.83/x
  3. Step 3: Cross multiply
    52,255.65x = 78,377.40 × 18,517.83
  4. Step 4: Simplify right side
    52,255.65x = 1,451,379,369.04
  5. Step 5: Solve for x
    x = 1,451,379,369.04/52,255.65
  6. Step 6: Final answer
    x = 27,774.59

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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.