Home / 52,145.82-78,217.80-12,702.84

Finding the Fourth Proportional to 52,145.82, 78,217.80 and 12,702.84

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Solution

The fourth proportional to 52,145.82, 78,217.80 and 12,702.84 is: 19,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,145.82 : 78,217.80 = 12,702.84 : x
  2. Step 2: Convert to fraction form
    52,145.82/78,217.80 = 12,702.84/x
  3. Step 3: Cross multiply
    52,145.82x = 78,217.80 × 12,702.84
  4. Step 4: Simplify right side
    52,145.82x = 993,588,198.55
  5. Step 5: Solve for x
    x = 993,588,198.55/52,145.82
  6. Step 6: Final answer
    x = 19,054.03

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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.