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Finding the Fourth Proportional to 50,072, 75,108 and 13,136

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Solution

The fourth proportional to 50,072, 75,108 and 13,136 is: 19,704

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,072 : 75,108 = 13,136 : x
  2. Step 2: Convert to fraction form
    50,072/75,108 = 13,136/x
  3. Step 3: Cross multiply
    50,072x = 75,108 × 13,136
  4. Step 4: Simplify right side
    50,072x = 986,618,688
  5. Step 5: Solve for x
    x = 986,618,688/50,072
  6. Step 6: Final answer
    x = 19,704

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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.