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Finding the Fourth Proportional to 55,136.88, 82,692.90 and 15,693.12

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Solution

The fourth proportional to 55,136.88, 82,692.90 and 15,693.12 is: 23,536.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,136.88 : 82,692.90 = 15,693.12 : x
  2. Step 2: Convert to fraction form
    55,136.88/82,692.90 = 15,693.12/x
  3. Step 3: Cross multiply
    55,136.88x = 82,692.90 × 15,693.12
  4. Step 4: Simplify right side
    55,136.88x = 1,297,709,602.85
  5. Step 5: Solve for x
    x = 1,297,709,602.85/55,136.88
  6. Step 6: Final answer
    x = 23,536.15

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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.